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Sending email problem (lemmy.ml)

submitted 2 years ago by [email protected] to c/[email protected]

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Hello! I managed to set up an instance quite easily with Ansible, only problem now is that I can't send emails in any way!

If I leave the default configuration (postfix: 25) and try to ask for a password reset, it tells me it sent it but nothing really comes.

I then thought of using an external SMTP, since I have it available together with the domain.

If I put: "smtps.aruba.it" then adding smtp_login and smtp_password when I try to send an email I get an error with only written: "465".

If I add the port to the SMTP server like this: "smtps.aruba.it:465" and also adding in "tls_type: tls" the server freezes for 5 minutes, does not send anything and I do not receive any errors.

I'm definitely doing something wrong but what? Where can I look?

Thanks!

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[–] [email protected] 1 points 2 years ago (1 children)

I haven't dug into lemmy setup/code yet but "465" sounds like lemmy is trying port 25 and the server says "no no no what are you doing plz use TLS over 465"

[–] [email protected] 2 points 2 years ago* (last edited 2 years ago) (1 children)

It is the same thing that I thought. Unfortunately, if I try to manually force the port by writing smtps.aruba.it:465 as I said the server freezes for several minutes, goes to 504 and does not send any email.

So I can not understand if the port must be entered in another way (?) or if I have to install something on the server first to be able to send an email through an external SMTP as in this case?

[–] [email protected] 0 points 2 years ago (1 children)

From what i can read here default email.tls_type value is "none" and it's not overridden in lemmy-ansible. Maybe try this?

[–] [email protected] 1 points 2 years ago (1 children)

yes, actually i tried 'none', 'tls' and 'starttls' but with no success. I tried with external SMTP because the default created by ansible does not work:

  email: {
    smtp_server: "postfix:25"
    smtp_from_address: "[email protected]"
    tls_type: "none"
  }

[–] [email protected] 0 points 2 years ago (1 children)

Sounds like a bug. When you turn on debug logging do you see anything specific? (i don't even know if debug logging is a thing in Lemmy ansible setup). Can you maybe also try with another SMTP client like msmtp to see if you can reach your mail server from it? It's possible that some network misconfiguration prevents it, or that your mail provider has blocked your IP/range for some reason.

[–] [email protected] 1 points 2 years ago (1 children)

I have answered and find the solution here: https://lemmy.ml/post/258218/comment/176759

Thanks for the help!

[–] [email protected] 2 points 1 year ago (1 children)

Apologies for necro'ing an old thread but - the above link has gone 404. What was the solution? I'm trying to do the same thing and am not sure how to get it to authenticate with my SMTP server.

[–] [email protected] 2 points 1 year ago

My problem was that the Hetzner server was new and therefore certain ports were closed. I solved it by contacting Hetzner support and having them open the ports.

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