How to get Discourse to work with Postfix

shu_kaze · April 16, 2016, 8:05am

I've tried everything, the firewall rules, app.yml settings, postfix main.cf settings...Even took into account the container IP address. I am at a loss, please do not recommend me an email service either as I have external email sources which discourse also failed to connect too. Basically I'm trying to get discourse to send ONE SINGLE EMAIL through postfix on port 25 (ISP isn't blocking, nor my firewalls), I've tried for 3 weeks now and I'm tired of this, I really don't want to drop this as it's a very good forum but it's making it very hard to even initially setup.

All I'm asking is a "how-to" get discourse to speak to postfix, googlefu had failed me in this task and I have nowhere else to go.

Right now I have an active admin account by manually enabling it cause, you guessed it, I didn't get the verification email. I'll provide any files such as settings and logs upon request.

Dexter_Kane · April 16, 2016, 8:15am

Can you send mail with postfix normally? Do you see anything in /var/log/mail.log (on the postfix server) when trying to send mail from discourse?

shu_kaze · April 16, 2016, 3:26pm

I use iRedMail as my mail server, it works flawlessly. Plus it doesn't report anything in /var/log/mail.log since Discourse is in a container, you can only rely on the Discourse front-end UI when you sign into admin and the production.log when you /.launcher enter app (basically logging into another instance/vm).

If it weren't for this container setup, I guarantee that there would have been no issue on my part. Would you like my mail and production logs?

Dexter_Kane · April 16, 2016, 10:14pm

I don't really have any experience with containers. If you're not seeing any activity in your mail log (on the mail server) when trying to send mail from discourse then it's likely a problem with discourse (or the container ) not being able to communicate with the mail server.

If you do see activity then it might give you an idea of what the problem is.

degan6 · April 16, 2016, 10:25pm

yeah bro lets see em.

shu_kaze · April 17, 2016, 1:57am

Ok, after some experimentation, I now get discourse to speak to postfix, however it now refused to AUTH discourse and has a STARTTLS error, I've tried many combinations but this part looks promising. Here's a slice of the mail.log:

Apr 16 15:01:16 fmisgaming postfix/master[5702]: daemon started -- version 2.11.3, configuration /etc/postfix
Apr 16 15:06:16 fmisgaming postfix/qmgr[5704]: 8B36AADD: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 15:06:17 fmisgaming postfix/local[7499]: 8B36AADD: to=[email protected], relay=local, delay=366, delays=366/0.06/0/0.1, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log file $
Apr 16 15:16:16 fmisgaming postfix/qmgr[5704]: 8B36AADD: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 15:16:16 fmisgaming postfix/local[9485]: 8B36AADD: to=[email protected], relay=local, delay=966, delays=966/0.04/0/0.07, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log file$
Apr 16 15:21:16 fmisgaming postfix/qmgr[5704]: 463795D3: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 15:21:16 fmisgaming postfix/qmgr[5704]: 9F6922C51: from=[email protected], size=36197, nrcpt=1 (queue active)
Apr 16 15:21:16 fmisgaming postfix/local[11441]: 9F6922C51: to=[email protected], relay=local, delay=66059, delays=66059/0.02/0/0.07, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 15:21:16 fmisgaming postfix/local[11440]: 463795D3: to=[email protected], relay=local, delay=152462, delays=152462/0.05/0/0.1, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 15:35:01 fmisgaming postfix/postscreen[14116]: CONNECT from [172.17.0.2]:54532 to [192.168.2.250]:25
Apr 16 15:35:01 fmisgaming postfix/postscreen[14116]: PASS OLD [172.17.0.2]:54532
Apr 16 15:35:01 fmisgaming postfix/smtpd[14119]: connect from unknown[172.17.0.2]
Apr 16 15:35:01 fmisgaming postfix/smtpd[14119]: lost connection after AUTH from unknown[172.17.0.2]
Apr 16 15:35:01 fmisgaming postfix/smtpd[14119]: disconnect from unknown[172.17.0.2]
Apr 16 15:36:16 fmisgaming postfix/qmgr[5704]: 5C02A42F0: from=[email protected], size=36197, nrcpt=1 (queue active)
Apr 16 15:36:16 fmisgaming postfix/qmgr[5704]: 8B36AADD: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 15:36:16 fmisgaming postfix/local[14209]: 5C02A42F0: to=[email protected], relay=local, delay=12966, delays=12966/0.04/0/0.09, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 15:36:16 fmisgaming postfix/local[14210]: 8B36AADD: to=[email protected], relay=local, delay=2166, delays=2166/0.02/0/0.1, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log fi$
Apr 16 15:38:21 fmisgaming postfix/anvil[14122]: statistics: max connection rate 1/60s for (smtpd:172.17.0.2) at Apr 16 15:35:01
Apr 16 15:38:21 fmisgaming postfix/anvil[14122]: statistics: max connection count 1 for (smtpd:172.17.0.2) at Apr 16 15:35:01
Apr 16 15:38:21 fmisgaming postfix/anvil[14122]: statistics: max cache size 1 at Apr 16 15:35:01
Apr 16 15:53:07 fmisgaming postfix/postscreen[15476]: CONNECT from [172.17.0.2]:54604 to [192.168.2.250]:25
Apr 16 15:53:07 fmisgaming postfix/postscreen[15476]: PASS OLD [172.17.0.2]:54604
Apr 16 15:53:07 fmisgaming postfix/smtpd[15477]: connect from unknown[172.17.0.2]
Apr 16 15:53:07 fmisgaming postfix/smtpd[15477]: lost connection after AUTH from unknown[172.17.0.2]
Apr 16 15:53:07 fmisgaming postfix/smtpd[15477]: disconnect from unknown[172.17.0.2]
Apr 16 15:54:43 fmisgaming postfix/master[5702]: terminating on signal 15
Apr 16 15:54:44 fmisgaming postfix/master[15726]: daemon started -- version 2.11.3, configuration /etc/postfix
Apr 16 16:14:44 fmisgaming postfix/qmgr[15728]: 8B36AADD: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 16:14:44 fmisgaming postfix/local[19848]: 8B36AADD: to=[email protected], relay=local, delay=4474, delays=4474/0.05/0/0.07, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log f$
Apr 16 16:15:05 fmisgaming postfix/postscreen[19939]: CONNECT from [172.17.0.2]:54825 to [192.168.2.250]:25
Apr 16 16:15:05 fmisgaming postfix/postscreen[19939]: PASS OLD [172.17.0.2]:54825
Apr 16 16:15:05 fmisgaming postfix/smtpd[19940]: connect from unknown[172.17.0.2]
Apr 16 16:15:05 fmisgaming postfix/smtpd[19940]: lost connection after STARTTLS from unknown[172.17.0.2]
Apr 16 16:15:05 fmisgaming postfix/smtpd[19940]: disconnect from unknown[172.17.0.2]
Apr 16 16:18:25 fmisgaming postfix/anvil[19942]: statistics: max connection rate 1/60s for (smtpd:172.17.0.2) at Apr 16 16:15:05
Apr 16 16:18:25 fmisgaming postfix/anvil[19942]: statistics: max connection count 1 for (smtpd:172.17.0.2) at Apr 16 16:15:05
Apr 16 16:18:25 fmisgaming postfix/anvil[19942]: statistics: max cache size 1 at Apr 16 16:15:05
Apr 16 16:29:44 fmisgaming postfix/qmgr[15728]: 463795D3: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 16:29:44 fmisgaming postfix/qmgr[15728]: 9F6922C51: from=[email protected], size=36197, nrcpt=1 (queue active)
Apr 16 16:29:44 fmisgaming postfix/local[22608]: 463795D3: to=[email protected], relay=local, delay=156570, delays=156570/0.05/0/0.1, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 16:29:44 fmisgaming postfix/local[22609]: 9F6922C51: to=[email protected], relay=local, delay=70167, delays=70166/0.03/0/0.11, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 16:44:44 fmisgaming postfix/qmgr[15728]: 5C02A42F0: from=[email protected], size=36197, nrcpt=1 (queue active)
Apr 16 16:44:44 fmisgaming postfix/local[26389]: 5C02A42F0: to=[email protected], relay=local, delay=17074, delays=17074/0.04/0/0.09, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 17:24:44 fmisgaming postfix/qmgr[15728]: 8B36AADD: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 17:24:44 fmisgaming postfix/local[3168]: 8B36AADD: to=[email protected], relay=local, delay=8674, delays=8674/0.06/0/0.09, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log fi$
Apr 16 17:39:44 fmisgaming postfix/qmgr[15728]: 463795D3: from=[email protected], size=36194, nrcpt=1 (queue active)
Apr 16 17:39:44 fmisgaming postfix/qmgr[15728]: 9F6922C51: from=[email protected], size=36197, nrcpt=1 (queue active)
Apr 16 17:39:44 fmisgaming postfix/local[5430]: 463795D3: to=[email protected], relay=local, delay=160770, delays=160770/0.04/0/0.08, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open lo$
Apr 16 17:39:44 fmisgaming postfix/local[5431]: 9F6922C51: to=[email protected], relay=local, delay=74367, delays=74367/0.02/0/0.1, dsn=4.3.0, status=deferred (temporary failure. Command output: Can't open log $
Apr 17 11:42:26 fmisgaming postfix/master[1533]: daemon started -- version 2.11.3, configuration /etc/postfix

It seems it cleans out the production.log whenever I kill the server...

Dexter_Kane · April 17, 2016, 2:14am

Is the username actually [email protected] and not [email protected]?

shu_kaze · April 17, 2016, 2:16am

No, I've replace the real username with 'user', the domain name is sv01.fmisgaming.com but when you use an email it will be only [email protected].

Dexter_Kane · April 17, 2016, 2:21am

What I mean is if the username is [email protected] but you're seeing [email protected] in the logs then that is probably why you're getting an authentication error, as the username is incorrect.

Dexter_Kane · April 17, 2016, 2:30am

You could also try disabling authentication for the discourse server, so it can send e-mail without needing credentials. To do that edit your /etc/postfix/main.cf file (on the mail server) and make sure the line smtpd_relay_restrictions = contains permit_mynetworks then add your server's IP address (looks like 172.17.0.2) to the mynetworks = line.

shu_kaze · April 17, 2016, 2:42am

Wow, I didn't think that would matter, so discourse is pulling the hostname instead of making the app.yml setting email the priority...I think we found a flaw in discourse here boys.

I've already made an exception in main.cf of those settings (and permit_mynetworks):

mynetworks 127.0.0.0/8 172.17.0.0/16 192.168.2.0/24

I'll see if I can resolve the username@address problem.

shu_kaze · April 17, 2016, 4:05am

...it works...I feel so stupid when I looked at my logs again...

Sorry for wasting your time.

Dexter_Kane · April 17, 2016, 4:07am

All good, glad you got it working

Jean-Francois_Bourde · September 20, 2019, 2:19pm

@shu_kaze

I have the same problem.
How did you solved it ? lost connection after AUTH

I am using a username and pw
if I telnet from discourse to postfix I can send email without authenticating myself
but I can’t dind how to config discourse to not authenticate

I authorized DIscourse IP to relay on the POstfix server

JF

Ruffalo · September 20, 2019, 2:31pm

I recommend signing up and using Mailgun. They give you 10k free emails per month.

https://www.mailgun.com/

Anv · August 13, 2020, 5:43am

@Dexter_Kane @shu_kaze

Hello.
It’s a similar problem. The log files display the sending of a test message, but there is no mention of sending invitations. I do not know where to go next to solve the problem.

Novasty · August 13, 2020, 5:52am

Necros twice, somehow went under our nose the first time.

How to get Discourse to work with Postfix Linux

Hello. I have a discourse without a docker on my local server. Also installed iRedMail. First I tried to use an smtp-server from mail.ru. Test messages were sent, as well as invitations. But no email notifications came in, and the password was reset. I decided that I should install my local mail server and see the logs there why messages do not leave. I did. Local messages come between mailboxes. That’s what you need for testing. Thought it would be enough for local discourse and mail. Set your local smtp server. Sent a test email… and it got there! Winner(no). Looked at /var/log/mail.log of the mail server. [image] Okay. Now I’m sending an invitation to the same box… Looking at the mail server logs… …and nothing. It’s empty. I don’t know what the problem is. All I’m asking is a “how-to” get discourse to speak to postfix. Right now I have an active admin account by manually enabling it cause, you guessed it, I didn’t get the verification email. I’ll provide any files such as settings and logs upon request.