On 5/22/21 11:29 AM, blackout69 wrote:
Hello everybody,
for a couple of days I have been seeing several lines calling these on /var/log/mail.log
May 22 18:22:57 glugct postfix/qmgr[21205]: 0ACE641C1B: from=<lug-bounces@catania.linux.it>, size=3698, nrcpt=9 (queue active) May 22 18:23:06 glugct postfix/qmgr[27175]: 0ACE641C1B: from=<lug-bounces@catania.linux.it>, size=3698, nrcpt=9 (queue active) May 22 18:23:36 glugct postfix/smtp[27177]: 0ACE641C1B: to=<myaddress@simail.it>, relay=none, delay=55152, delays=55122/0.07/30/0, dsn=4.4.1, status=deferred (connect to mail.simail.it[217.27.113.30]:25: Connection timed out) ... But always on a single email address.What could it depend on?Probable that the mail.simail.it server is blacklisted?
It's probably not blacklisting. It's not getting that far. Your glugct
is attempting to connect to port 25 at mail.simail.it and the connect is
not being answered. Normal blacklisting will not occur until after the
remote MTA answers the connect and determines the IP of the caller. And
in any case, if it is some kind of blacklisting it is your glugct
server that is blacklisted by mail.simail.it.
I just did the following
$ telnet mail.simail.it 25
Trying 217.27.113.30...
Connected to mail.simail.it.
Escape character is '^]'.
220 mail.simail.it ESMTP ready.
quit
221 mail.simail.it closing connection
Connection closed by foreign host.
so it did answer my connect. In any case, this is not a Mailman issue. It is between Postfix on your server and the remote server at mail.simail.it.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan