Postfix vs sendmail reddit. I can send mail out, but not recieve.

Postfix vs sendmail reddit sk[xxx. 0 on a VPS. y. *, though, sendmail is the default MTA. Postfix is a better choice than Sendmail. Default Sendmail will relay any messages you inject into it's queue. For my own webserver, I have wordpress pages that call to php mail. I have used both postfix and exim, and postfix is both easier to setup and easier to administrate after the fact. I couldn't decom that fast enough. I use postfix to connect to my mail service relay servers for sending mail instead of trying to send it directly from my server. It uses hardly any resources and I never have to touch the thing. Performance Level: Excellent; Since: 1997 Create the /etc/postfix/generic file with the following content: @domain1. 03 LTS mail_version is 3. Opendmarc (for enforcing dmarc policy in general) , spamassassin, rspamd come to mind. The way it's configured now, it expects to handle mail for addresses like info@mail. It does actual communication with remote mail servers for sending and receiving emails. It was created as an alternative to Sendmail, addressing some of its security and complexity issues. I can replace the sendmail server. To me the main difference is that C++ supports operator overloading, which can make postfix increment expensive on custom data type. Postfix is beauty incarnate, I've been using it since 99 and have never had cause to complain. Ask Question Asked 4 years, 5 months ago. To answer the first question, myorigin should generally be set to the "domain part" found in your email addresses. Reply reply More replies More I'm going to make the assumption that this is the only mail server handling mail for mydomain. " I have Postfix configured to forward to exchange, exchange has a connector provisioned, and in the logs I see that Postfix can receive emails but I also see in the Postfix on it's own doesn't care about dmarc or stuff like that You need 3rd party stuff. Reply reply d1g1t4ld00m There's a few unanswered questions like if you want to do a blacklist, or a whitelist (allow myvirtdomain. A reddit dedicated to the profession of Computer System Administration. The main idea of the operators is to be able to use the variable and increment it at the same time. In /etc/rc. 172. 140[50. It can view and edit local user mailbox file. I recall for example the mta controversy (postfix vs sendmail vs exim), the editor controversy (vim vs emacs) and the desktop controversy (kde vs gnome). The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and other LinusMediaGroup content. We did use Sendmail though. 04. Seems the postfix config files can be massaged by browsing the sendmail files. Security purpose: Good record. Postfix works better. This Sendmail and Postfix are indeed both Mail Transfer Agents (MTAs). Reply reply Linus Tech Tips - Reddit vs PC Part Picker vs LTT Forum – Where Should YOU Go for Build Advice? November 18, 2023 at 09:50AM youtube Tl/dr: prefer prefix to postfix. Instead of monkeying with postfix, write your own bash script and configure it under sendmail_path. 1 rejected by DMARC policy for the-sender-domain. Exchange Server Lets Encrypt SSL I see that the only option for sending from your own server in ActionMailer is using sendmail: basically Ruby will invoke an external command for each email. Sendmail using this comparison chart. We use one to keep track of which website is sending emails and rate limit them. All I want is it to accept mail for 3 domains which are pointed to my IP. Postfix is less flexible than Exim, and this is mostly due to its major style requirements being protection. Sendmail is incredibly configurable but it gets a lot of effort/learning to access its full capabilities. com but the company email is z. For immediate help and problem solving, please join us at https://discourse. If your code is complex and you need to use postfix, first try and make the code simpler so that it doesn’t need postfix. From years of bug fixes, feature enhancements, and field testing sendmail is largely considered stable, robust, and flexible. However, sendmail's consistency and functionality comes with some costs; as many experienced UNIX/Linux admins will confirm, sendmail is a Limitations are that extremely high volume or customized environments can be problematic to tune and optimize compared to Sendmail. A fourth way to access sendmail is with popen(), if you go that route be sure to use shellescape() on all arguments, there was a major WordPress exploit due to a failure to escape args a few years back. ``` sendmail test@test. Postfix is quite a bit easier for a new admin to set up, and has some nice features that integrate well with the mail store end of the process (Cyrus POP/IMAP, Postfix is designed with a modular architecture and emphasizes security. We're going to switch over another MTA which I'm guessing would be qmail or postfix. com] @domain2. 75. Becaus ethe iterators are not built in types, using postfix increment will always make a copy and is more expensive. We send email on behalf of a half dozen domains and unfortunately the internal system allows folks to put in whatever they want as the from address - I can't help, but I'm dropping my condolences on the fact you are stuck. During an SMTP conversation between two servers, there are two parts: the envelope and the message content. Postfix applies excellent built-in mechanisms against spam bots and malware. com and sales@mail. Tried a Little Script with Sendmail too. Posted by u/[Deleted Account] - No votes and 5 comments The way that postfix does clamav and spamassassin, for example, is a bloated inelegant mess compared to using MimeDefang milter on sendmail. With the Command telnet IP PORT i can't establish a connection. Compare price, features, and reviews of the software side-by-side to make the best choice for your business. And postfix simpler to configure than Sendmail. Also if you are concerned with security, might also look into setting up a dkim client on the server as well. Ubuntu 22. You also need an IMAP server. But the default sendmail is there and I've configured smart host for it. Or create linux sendmail server, configure it to forward all stuff to 365 mx, add its ip to spf and use its certificate to match connector. Postfix. Hello, I have a sendmail client with a hostname box1234. For most use cases, Exim is pretty secure but still loses out to Postfix. 7. Internet -> sendmail -> Domino (mail forwarded to o365 domain) -> sendmail -> o365 All but the end points are on premise. Postfix postscreen vs spamassassin If my understanding is correct if postscreen is configured correctly it will check spam via the dnsbl. I want to setup a telnet session with powershell to postfix SMTP in my Docker Container. I didn't have time to learn Exim fully, just most of the "need to know" stuff. Teaching postfix notation, aka RPN, would have students learn about stacks and registers (registers being necessary when programming microprocessors). " Sendmail is old. Use prefix unless you need postfix. However, support for Exim is better on hosting and hosting control panels forums. However, I'm confused what to go for. Use Postfix or Exim, both of which are Sendmail-compatible and without all of the configuration headaches that come with Sendmail. Only this will not work because your ISP blocks outgoing port 25, and even if it didn't, your recipient's mail server would reject the message because it's from a home connection, and doesn't have matching dns/reverse dns/helo, and probably isn't in compliance with the Sendmail and Postfix are indeed both Mail Transfer Agents (MTAs). Also consider using a third party like SendGrid or Amazon SES for outbound SMTP, instead of trying to We've been using sendmail for 3 years. However, when mail arrives, Dovecot cannot verify if the user exists, because the user is in Keycloak and an API call can only be made with an OAuth token, which is of course absent from all incoming emails. Run this command to make sure you have everything installed yum install system-switch-mail service sendmail stop yum -y install postfix && chkconfig postfix on && service postfix start system-switch-mail I'm another one for Postfix. " I haven't worked with postfix much, so I'm bouncing between the man pages, forum posts, and blog It can compose emails and deliver them to local mail transfer agent (sendmail, postfix, etc) which does actual sending to remote addresses. Individually in really like postfix. 6. Taking a Closer Look: Exim vs Postfix vs Sendmail. Postfix, exim, or real sendmail will all queue emails if the server can't connect to your real email servers for some reason. 04 installs that say it is active and running. Spamassassin uses its database to scan the headers and bodies and depending on the outcome flags the message as spam or doesn’t then the message is dealt with by the reference to the flag. ``` ``` echo "This is a test Compare Postfix vs. When choosing an MTA for your email server, the choice often comes down to your specific needs and preferences, as well as the system and software requirements of your From a basic features standpoint they offer the same things, with the main difference being that hMail is Windows based, while Postfix is Linux. Ask the community and try to help others with their problems as well. I then manually enabled it at startup using systemctl enable postfix. One of the first things I do on a new system is install and enable postfix, and disable sendmail. com. com when using something like the mailx program where today I need to I did a fresh install of v13. " A reddit dedicated to the profession of Computer System Administration. Also, if you want to enforce based on sasl authentication, or based on the sender email address (anyone can use any if you allow based on the IP). So whichever you (or your team) might be more comfortable with is probably the one you chose. For immediate help and problem In summary, both Postfix and Sendmail are MTAs used for email delivery, but Postfix is generally considered a more modern, secure, and easier-to-configure option compared to Sendmail. Members Online. Setting up your Postfix configuration offers better protection against abuse, spam, and exposure of sensitive data. They are the same. I am trying to setup postfix to send me system emails via gmail exchange. Besides of said, postfix written in C, which is well know as fastest compiler to native CPU opcodes. sendmail unsupport -X option . You move the iterators with the ++ and -- operators. It says the connection to the server could not be created. I'm not even interested in security, or anything else. In java, the operators are only defined on primitive types, i stick to only postfix increment so Email generally has lots of weird edge cases, too. com From: test@test2. Now at This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API changes, which break third-party apps and moderation tools. So my postfix is only configured to send outbound email. I ended up trying again dovecot and postfix and it seems to be working this time, thought it was pretty tough to configure. I can send mail out, but not recieve. . Exim – Comparison Table. Took my team 5 years after I came on to finally get to pushing out postfix over sendmail, and honestly it came down to supportability, and we are finally spinning down the last of the systems running sendmail at the end of the month. There are many things that are just coded that way and you have to live with it. So if I've run Sendmail and Postfix hard on much, much, much, more modest boxes than any instance or hardware you're using today, I promise. If it's a member function with no arguments or a non-member function with one argument matching the class, it's pre-increment. Sendmail is dreadfull. If you are using RHEL 5. (I'm actually currently using Postfix/Dovecot, but have been planning to try out moving to Citadel for some time now, and just haven't gotten around to it yet. Hi guys, I am using postfix with sendmail wrapper to catch all mails to a local useraccount. f544@the-sender But seriously, with the standard stock installation of Postfix on a RHEL/Centos box, you should only have to change like 2 lines of the stock config for a simple and relatively secure outgoing relay server (change it so it does not bind to only localhost, and Do you think it is worth taking the time to teach postfix notation? I notice that most people who ask about programming calculators are using the now ubiquitous infix notation. For immediate help and problem solving, please I need to do this eventually. Reason: SMTP transmission failure has occurred Diagnostic If you need a full smarthost/MTA with MX-based routing, then Postfix on a Linux or BSD instance with minimal specs, or hMailServer if you absolutely need to run it on Windows. I compared that to the other 18. And to answer your other question, you don't need postfix, because you aren't receiving mail. It’s simpler, potentially faster, wont stress the compiler and most importantly captures your intent that this is a simple increment. 140]:25 Mail server: postfix vs smtpd I'm not certain if this is the right sub to post this in, but here goes. It's only internally accessible so it's technically configured as an open relay. It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Since everyone ELSE is already suggesting the usual postfix/exim options, I figured I'd mention something different. Dovecot would be your IMAP service, which you connect to Sendmail itself is rather monolithic (not exactly true, but close), whereas Postfix has more specialized components that deal with the network stack and the queue independently. 04 and 18. While Postfix is an MTA with a clear emphasis on security, Sendmail is standard for Unix systems and Exim can be customized so intricately its flexibility is beyond Postfix vs. com Subject: Test mail This is a test email. When you connect to reddit "What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Some might argue that running something like postfix is more efficient in Kubernetes because the CPU/Memory resources will mostly be used when postfix is actually sending/receiving (a more efficient way of processing the mail Sendmail has long been the internet's standard Mail Transfer Agent (MTA). More helpful details are as follows: MTA: Postfix: Sendmail: The link you provide seems to be to the man page for the notoriously difficult to configure Sendmail MTA -- the Bat book weighs in at a svelte 1312 pages. Postfix Postfix is like qmail but the interface is like Unix so simple to set up. Get the Reddit app Scan this QR code to download the app now. Mar 27 12:07:24 mailserver postfix/cleanup[393607]: 9832C600C4: milter-reject: END-OF-MESSAGE from bru. AFAIK there will be no sendmail-9 [see MeTA1]. ) This will work out of the box. Microsoft Exchange Server; As part of the Windows Server suite of enterprise-grade collaboration and messaging tools, Microsoft I use linux since 2000 and it was always something that some users hated. Or write your own (give Postfix SMTP Access Policy Delegation a read) I am a java developer, too. Now at Get the Reddit app Scan this QR code to download the app now. It was developed by Wietse Zweitze Venema, who is a well known specialist for freeware security. A better solution: if you need to change to a destination port like tcp/587 or tcp/465, and/or you need to use TLS for transport, and/or need to add SMTP authentication, then Stunnel makes for a good sidecar It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. It's fairly easy to do, and only affects PHP. xcrwrws. ). One of the biggest advantages of the Postfix mail transfer agent is definitely security. Sendmail, on the other hand, is an older MTA While Postfix is an MTA with a clear emphasis on security, Sendmail is standard for Unix systems and Exim can be customized so intricately its flexibility is beyond most MTAs. " the inter-server side or transport side where basically mail is transported between one Postfix to another Postfix/Exchange/Exim/. Or check it out in the app stores &nbsp; "What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Modified 3 years, 11 months ago. Advantages of Postfix Postfix and Security. mydomain. I need to get a bit pedantic here. 4 Postfix was still trying to send emails from the old hostname due to a botched update to /etc/mailname which appended 'my-webserver4' rather than replaced it. Postfix and ssmtp both provide a sendmail binary which php calls after you call mail(). Come and join us today! Join the club. Then SMTPUTF8 came around, and I said "oh cool, I can use UTF-8 characters in my email address!" so I setup an alias, only to learn that while Postfix supported SMTPUTF8, Dovecot's LMTP implementation didn't. I am not sure if that is your intent, or if you mean the Postfix sendmail compatibility interface. sendmail is mail server. Once you discover the joy of a unique message ID that follows through from stem to stern in the mail log, you will cry tears of joy after migrating away from qmail. I looked for the process using htop and compared that to both the 16. When I try to send an email via php <?php View community ranking In the Top 20% of largest communities on Reddit. Reply reply strzibny A reddit dedicated to If you consider your examples as prefix if expression vs postfix if statement, there is definitely research on this and the resulting continuation passing style. Exim is installed by default but a pain to configure and has suffered from many security holes. postfix rests between qmail and exim. All outgoing mail can be configured to appear to be Postfix is a great stable MTA (SMTP server/client) but it is not infinitely flexible. Instead, you're It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support Postfix. It all comes down to what Postfix would be your MTA, the service that accepts incoming mail from other servers and routes outbound mail to other servers. 205]: 5. I run an Exim server which is totally managed by cPanel and it's fine for it's limited use, but as someone having to hand write the configs for their babied postfix-powered end-mta, I wouldn't pick anything else. Same results. Just ignore it :) Postfix, exim, or real sendmail will all queue emails if the server can't connect to your real email servers for some reason. While we recommend postfix over sendmail, you can remove either package from your Both Postfix and Sendmail are extremely configurable, but Postfix generally wins in terms of flexibility and ease of administration for new users. We can’t label Sendmail as a secure MTA, especially when Postfix was initially conceived as a way to address those weaknesses related to Sendmail. This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API changes, which break third-party apps and moderation tools. It's likely that using prefix vs postfix for any built in type will not make any difference. The PHP mail() command simply calls the sendmail executable as defined in your php. com] Run postmap /etc/postfix/generic to compile the changes Restart Postfix service for the changes to take effect Finally, you can use postconf -n command to verify your Postfix configuration. Yes, if you can possibly move to Postfix you will be in a much better position to make this and other future config changes, and Postfix should run just fine on AIX. I compared the location of the pid. Filtering Options for Postfix While Postfix uses plain and simple easy to understand textfiles to do the same. " Hi I am in the process of setting up postfix on a ubuntu server. Dovecot is the most common choice these days. Dovecot is the LMTP and authentication server. ;) Note for amused readers: a "Google Pixel Watch 2" has 2GiB memory and runs all day on your wrist from battery power. It is there. In contrast, I can control every part of the SMTP transaction and deal with it at that phase directly with Mimedefang on Sendmail. Note: Reddit is dying due to terrible leadership from CEO /u/spez. Now at The comparison of mail servers covers mail transfer agents (MTAs), mail delivery agents, and other computer software that provide e-mail services. Smalltalk has a similar if control structure. PowerMTA vs. ini file under "sendmail_path". But overall, Postfix handles the needs of most use cases with better ease of use. I've been looking into setting up mail server on OpenBSD, and from what I've read the two main Mail Transfer Agents people use are Postfix and OpenSMTP. tld>, relay=50. cf file). Unix-based mail servers are built using a number of components because a Unix-style environment is, by default, a toolbox [1] operating system. There is some research regarding the issues this brings with dynamic inheritance (locking issues of the super), and other concurrency We use a really small Postfix Ubuntu VM to act as a relay. Which one of them can send This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API I am trying to setup postfix to send me system emails via (using proper email addresses) do not work. z. Postfix is a good choice for an MTA, it's been around for a long time, is very reliable and quite lightweight. conf: postfix_enable="YES" sendmail_enable="NO" sendmail_submit_enable="NO" sendmail_outbound_enable="NO sendmail_msp_queue_enable="NO" However this time the mail subsystem is not working Postfix has been designed later with more dangerous internet in mind. com relay:[smart_host. com instead of bob@box1234. Postfix is a security-oriented MTA, whereas Sendmail is standard MTA for Unix systems, and Exim is customizable and one of the most flexible mail transfer agents in terms of configuration. It's documentation is comprehensive and quite readable compared to some of the alternatives (for a good time, find an old copy of a sendmail. Postfix and Exim are both less screwed up then sendmail. Here are some more key details to help This article has demonstrated sendmail vs postfix commands, as well as provided arguments as for which MTA will best suit your needs. com with Postfix. C++ has a thing called iterators, which are used to move through containers. Postfix is easier to configure What mailer should I use Sendmail or postfix. Heck, even Exchange sucks less then sendmail "What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. xxx. practicalzfs. Qmail is crippled by Dan Bernstein's weird licensing which prevents any of the Linux distributions from shipping it. "What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. 04 install where it is seen and running. x. Postfix is configured to treat my domain as a virtual domain for LMTP delivery. 106. com>, orig_to=<alias@domain-that-i-host. eu; from=<pat1r. I was instructed that Postfix is sendmail compatible for anything expecting to find sendmail on a system, but the config files are different and need to be manually configured. Like my setup was Postfix+Dovecot with delivery via LMTP. It is easy to configure and very The default MTA in RHEL 6 is Postfix. The difference in the post and prefix is when the increment occurs. com to send everywhere EXCEPT A,B,C). This is especially true in the java-driven Zimbra suite. After massaging I presume all that is needed is: It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Having said that, Sendmail is the most configurable SMTP service, and hence, perhaps the most secure. com to send ONLY to A, B, C; or allow myvirtdomain. Sendmail vs. Posted by u/side_control - 15 votes and 5 comments Setup Postfix or Sendmail in Kubernetes. Now at Don't use sendmail. (using proper email addresses) do not work. A stock Unix-like server already has internal mail; more traditional ones also come Postfix Temporary lookup failure/Relay access denied - Can receive mail but can't send it The extra dummy int parameter is how the compiler distinguishes the two. When i ping the IP from the Docker container, it is reacable. Now at Google, Wietse continues to support Postfix "What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. com Ok, thanks guys. The key term we've been looking for is, performance. My personal sendmail suggestion for up to medium level postmasters is "KEEP (if you are medium+ user)". " Feb 1 07:36:36 h6lix postfix/smtp[22140]: 8F6544089C: to=<destinationofalias@gmail. I'm trying to figure out how to configure sendmail so that outgoing mail automatically puts return address to the proper external domain name such as bob@z. Problem is postfix doesn't start, and postfix start doesn't work, as it says it's reserved for superuser, which I believe is a docker anti-pattern (trying to use sudo)? Any suggestions on what I should do? I noticed there is a postfix container, unofficial, but if I run that, I don't know how to have my PHP app forward the emails to said container. Postfix is quite a bit easier for a new admin to set up, and has some nice features that integrate well with the mail store end of the process (Cyrus POP/IMAP, Dovecot, etc. gqcia txxx hzgp pxrs wxwcde nuhf iqups bgdt wjt ipsbypu