Re: [exim] error 421 on a new exim4 server

I admit that I did a bit of confusion. I tested their server with an
email I created with them, and once and without authentication.

Anyway now I tried to telnet the port 25 of their mx domains and It's
reachable but I don't receive the message "220 ...",and then they close
the connection after I digit "HELO myddnsdomain".

This is one reason I should read that book ;)


Il 08/01/21 17:03, Kai Bojens via Exim-users ha scritto:
> Am 08.01.21 um 14:11 schrieb Ale via Exim-users:
>
>> Could you give me some advice, some documentation that I could use to
>> fix or better understand this please?
>
> Do you want to use smtp.tiscali.it as a relay for sending mails? Port
> 465 would then be the way to go as it is preferred over port 25 for
> relaying mails. Don't forget to include client authentication.
>
> If you want to send mails to users within the tiscali.it domain you're
> mistaken - their mx servers are not "smtp.tiscali.it". You can check
> for them with "dig".
>