"Stephen" == Stephen J Turnbull <turnbull.stephen.fw@u.tsukuba.ac.jp> writes:
Stephen> blackout69 writes:
If you can connect (via telnet) to port 25 on mail.simail.it from
Il 23/05/21 01:21, Mark Sapiro ha scritto: > Can you successfully telnet to port 25 on mail.simail.it from the > Mailman server? No the > Mailman server, then I'd suggest stopping and restarting Postfix.
if i try from the mail server i get
telnet mail.simail.it 25 Trying 217.27.113.30... telnet: Unable to connect to remote host: Connection timed out
Stephen> mail.simail.it is ignoring your mail server. This is not a Stephen> Mailman problem. 1. Check to see if that server has a Stephen> stated policy for "abusive" mail and some way of getting back Stephen> in their good graces. 2. Check if your mail server is in Stephen> the RBLs. Some of them are very aggressive about adding IPs Stephen> and domains. 3. Try writing the postmaster at Stephen> mail.simail.it. 4. Ask your subscriber(s) at mail.simail.it Stephen> to write their postmaster.
Also check your firewall rules. Outgoing port 25 is usually blocked by ISPs unless you explicitly ask for it not to be.
Peter C