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I am trying to setup basic e-mail server just for me on my Ubuntu 12.04 following these guides. https://help.ubuntu.com/community/Postfix

https://help.ubuntu.com/community/Dovecot

I executed everything as it says in the tutorial. When I test with telnet from localhost everything seems fine, but when I try to connect with Thunderbird, it finds the settings automatically, even says that the certificate is invalid (which seems legit), but I get an error that my password is incorrect.

I can`t quite understand, is my mailbox linked with my linux account or I have to create a new user for this ? What can I do to see what the problem is ?

I have almost no idea what I am doing, so ... any help will be usefull.

Regards.

pevik
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gotha
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3 Answers3

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You can check authorization with doveadm command. Log in tou your mail server and type:

doveadm auth username

then enter the password. If no luck, try doveadm auth username@domain.tld - it depends on your setup.

If both commands fail, check if such user exist: doveadm user username or with domain.

If it fails too, the check your config files and lookups.

gevial
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  • When I execute: doveadm auth username this is what I get: Password: doveadm(username): Error: auth: connect(/var/run/dovecot/auth-client) failed: Permission denied (euid=1000(username) egid=1000(username) missing +r perm: /var/run/dovecot/auth-client, dir owned by 0:0 mode=0755) Any ideas what this shoud mean ? – gotha Mar 18 '13 at 13:50
  • Okay, then run `sudo chmod a+r /var/run/dovecot/auth-client` and try one more time. If succeed, now you know the reason. And do not forget to tighten up the permissions of that file after that. – gevial Mar 18 '13 at 13:54
  • When I execute this as root I get: doveadm(root): Error: auth: connect(/var/run/dovecot/auth-client) failed: Connection refused – gotha Mar 18 '13 at 13:56
  • Check if `dovecot` is running: `/etc/init.d/dovecot status`. If it is stopped, run: `sudo /etc/init.d/dovecot start` – gevial Mar 18 '13 at 14:02
  • I changed all permissions, now when I try doveadm auth I see: passdb: gotha auth succeeded extra fields: user=gotha but the problem with Thunderbird remains. Anything else I may want to test ? – gotha Mar 18 '13 at 14:02
  • At least, your dovecot setup seems to be fine. Are you experiencing Thunderbird issue when trying to fetch mail or to send? – gevial Mar 18 '13 at 14:07
  • let us [continue this discussion in chat](http://chat.stackexchange.com/rooms/7967/discussion-between-gotha-and-slimsuperhero) – gotha Mar 18 '13 at 14:10
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    not sure if this is because a different version of dovecot, but I have to use `doveadm auth login username` – JohnRDOrazio Apr 02 '20 at 22:26
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According to the documents you've followed, you've configured your server to use PAM for authentication, which means yes, your email accounts are connected to use local accounts.

NickW
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On Thunderbird security.tls.version.min is 3 by default. If is an old postfix / dovecot, you have to set security.tls.version.min to 1 or to upgrade postfix , dovecot.

Cristian Vasilescu
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