SMTP Authentication And Encryption

SYSTEM INFORMATION
OS type and version Ubuntu Linux 18.04.6
Webmin version 2.111
Virtualmin version 7.10.0
Related packages SMTP Authentication And Encryption

How do i Authenticate My SMTP for it to work with thunderbird. Can anyone explain to me how i can figure it out.

May 2 08:00:23 custornwi postfix/smtpd[824]: lost connection after UNKNOWN from unknown[206.168.34.187]
May 2 08:00:23 custornwi postfix/smtpd[824]: disconnect from unknown[206.168.34.187] unknown=0/1 commands=0/1
May 2 08:00:24 custornwi postfix/smtpd[824]: warning: hostname unused-space.coop.net does not resolve to address 206.168.34.187: Name or service not known
May 2 08:00:24 custornwi postfix/smtpd[824]: connect from unknown[206.168.34.187]
May 2 08:00:24 custornwi postfix/smtpd[824]: lost connection after UNKNOWN from unknown[206.168.34.187]
May 2 08:00:24 custornwi postfix/smtpd[824]: disconnect from unknown[206.168.34.187] unknown=0/1 commands=0/1
May 2 08:03:44 custornwi postfix/anvil[826]: statistics: max connection rate 5/60s for (smtp:206.168.34.187) at May 2 08:00:24
May 2 08:03:44 custornwi postfix/anvil[826]: statistics: max connection count 1 for (smtp:206.168.34.187) at May 2 08:00:17
May 2 08:03:44 custornwi postfix/anvil[826]: statistics: max cache size 1 at May 2 08:00:17
May 2 08:06:26 custornwi dovecot: pop3-login: Disconnected (no auth attempts in 1 secs): user=<>, rip=69.164.217.74, lip=5.104.75.191, session=<6i5BZ3IX6KlFpNlK>
May 2 08:38:12 custornwi dovecot: pop3-login: Disconnected: Too many bad commands (no auth attempts in 0 secs): user=<>, rip=185.167.96.138, lip=5.104.75.191, session=
May 2 08:40:18 custornwi dovecot: imap-login: Disconnected (no auth attempts in 10 secs): user=<>, rip=162.243.135.36, lip=5.104.75.191, TLS handshaking: SSL_accept() syscall failed: Success, session=
May 2 08:40:25 custornwir\ dovecot: imap-login: Disconnected (no auth attempts in 10 secs): user=<>, rip=185.242.226.23, lip=5.104.75.191, TLS handshaking: SSL_accept() syscall failed: Success, session=<yH/F4HIXLrW58uIX>
May 2 08:42:30 custornwi dovecot: pop3-login: Disconnected (no auth attempts in 10 secs): user=<>, rip=107.170.248.43, lip=5.104.75.191, TLS handshaking: SSL_accept() syscall failed: Success, session=<y7E+6HIXYL5rqvgr>
May 2 08:45:41 custornwi dovecot: imap-login: Disconnected (no auth attempts in 4 secs): user=<>, rip=172.104.238.162, lip=5.104.75.191, TLS handshaking: SSL_accept() syscall failed: Success, session=

are any of these logins you trying to login from thunderbird or just attempted connections from randoms ? I looked at the IP addresses in your posted log and they all appear to be on a blocklist.

All my port are all open

you can see that via the attempted logins we need to see your attempt from thunderbird to log in to the mail server

Is there anyway i can Authenticate smtp for it to work

We need to see the error/attempted login to see what is going on

ERROR: 454: 4.7.0 Temporary authentication failure: generic failure

warning: SASL authentication failure: cannot connect to saslauthd server

If you have this enabled it is ‘auto-magically’ done. My Thunderbird client connected without hiccup.
image

I enable it yet it still will not work

Did you get this fixed?

is your SASL service running

image

That is not related to OPs problem. That is for serving autoconfiguration files…nothing to do with the saslauthd service, at all.

That error looks like saslauthd is not running.

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