Using Postfix with Discourse

Installation
1

So I installed Postfix in my server with discourse (I know its not suggested).
My Postfix works fine and I send email with it.

The issue is with Discourse/docker not wanting to send email (can’t even get the admin activation)

I read that:

  1. It is a docker issue
  2. You shouldn’t have postfix in the same server
  3. I will be put in the spam box pretty fast

What are you guys using as an smtp server?

2

Postfix and Discourse are perfectly compatible so I suggest you change the title of your topic accordingly :wink:
You probably have a configuration issue.

If you configure everything right then you will deliver everything straight into inbox.

2 Likes
3

I tried every configuration in the book.

For my postfix /etc/postfix/main.cf:

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = discourse-mydomain
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = discourse-mydomain, mydomain.com, discourse-mydomain, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128, 140.82.40.82, 172.17.0.2
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = 172.17.0.1
inet_protocols = all
home_mailbox = Maildir/
virtual_alias_maps = hash:/etc/postfix/virtual

I actually even changed the inet_interfaces to match my docket container.

  DISCOURSE_SMTP_ADDRESS: mail.mydomain.com
  #DISCOURSE_SMTP_PORT: 587
  DISCOURSE_SMTP_USER_NAME:
  DISCOURSE_SMTP_PASSWORD:
  #DISCOURSE_SMTP_ENABLE_START_TLS: true

Don’t see where the config is wrong. any ideas?

4

Welcome to the forum, @cmoi! Glad to have you here. :wave:

I find mandrillapp.com and mailgun.com to be pretty solid.

5

Does anyone know where is my mail logs sent by Discourse?

6

Maybe you can start by telling us what your actual problem is instead of “does not work”…

  • What are you doing? (please be verbose)
  • What is your expected outcome?
  • What is happening instead?
  • Do you see any error messages?
  • Is there anything else worth telling us?
3 Likes
7

I actually gave up and took Amazon SES instead.

1 Like
8

Hey There,

Running into a similar issue with a Bitnami docker container of Discourse. The emails just aren’t sending.
Here is the error I’m getting:
There was a problem sending the test email. Please double-check your mail settings, verify that your host is not blocking mail connections, and try again.

Here are my SMTP settings:

Delivery Method
address smtp.sengrid.net
port 465
user_name apikey
authentication login
enable_starttls_auto true

Any guidance on where I need to look/troubleshoot next?

Edit: Have tried 587, plain authentication method, different apikey/password. Have setup this on other apps no problem with similar settings.

Expected outcome is for the email to send from Discourse to the inbox of the test account.

Sincerely,
Jared

9

Yes. Follow the Discourse official Standard Installation and see if the problem persists.

EDIT: it’s also possible that your VM is blocking port 465. You might try 2525 (not sure if sendgrid supports that, but they probably do).

3 Likes