Hi! This time I have a problem with receiving email. Before it was ok - and it's not anymore - I don't know why. MX -> set correctly - eoglaszamy.pl External Server IP: 79.162.235.144 Internal Server IP: 172.xx.xx.xx Sending email within one server works fine Receiving an email from an external server - no, nothing comes In logs from an external server: Aug 6 21:39:01 server1 postfix / smtpd [15127]: connect from localhost.localdomain [127.0.0.1] Aug 6 21:39:01 server1 postfix / smtpd [15127]: 520632E00BE: client = localhost.localdomain [127.0.0.1] Aug 6 21:39:01 server1 postfix / cleanup [13313]: 520632E00BE: message-id = <[email protected]> Aug 6 21:39:01 server1 postfix / smtpd [15127]: disconnect from localhost.localdomain [127.0.0.1] ehlo = 1 mail = 1 rcpt = 1 data = 1 quit = 1 commands = 5 Aug 6 21:39:01 server1 amavis [16062]: (16062-09) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [79.162.235.144]: 61582 [79.162.235.144] <[email protected]> $ Aug 6 21:39:01 server1 postfix / qmgr [1215]: 520632E00BE: from = <[email protected]>, size = 44999, nrcpt = 1 (queue active) Aug 6 21:39:01 server1 postfix / smtp [14909]: 5D83A2E00BD: to = <[email protected]>, relay = 127.0.0.1 [127.0.0.1]: 10026, delay = 36, delays = 1.4 / 0.03 / 0/35, dsn = 2.0.0, $ sta Aug 6 21:39:01 server1 postfix / qmgr [1215]: 5D83A2E00BD: removed Aug 6 21:39:01 server1 dovecot: lda ([email protected]): sieve: msgid = <[email protected]>: stored mail into mailbox 'INBOX' Aug 6 21:39:01 server1 postfix / pipe [15162]: 520632E00BE: to = <[email protected]>, relay = dovecot, delay = 0.23, delays = 0.13 / 0.02 / 0 / 0.09, dsn = 2.0.0 , status = sent (deli $ Aug 6 21:39:01 server1 postfix / qmgr [1215]: 520632E00BE: removed From what I can see - email has arrived, but no trace on the target server ... best regards
Check the INBOX. Upon delivery that will be /var/vmail/eoglaszamy.pl/info/Maildir/new/ (and moves from "new" to "cur" once a mail program has read the message).
Hi, Code: root@s1:/var/vmail/eoglaszamy.pl/info/Maildir/new# ls -a . .. Folder is empty... I have request from gmail: Code: The recipient server did not accept our requests to connect. Learn more at https://support.google.com/mail/answer/7720 [eoglaszamy.pl. 79.162.235.144: unable to read banner]
Hmm, ok, your logs show a successful delivery, I thought they were logs for your test email, but must be unrelated. If Google can't connect, you have a firewall or port forwarding problem, or bad dns. See https://www.howtoforge.com/how-to-install-an-email-server-with-ispconfig-on-debian-10/
Hi, please look in my config: ISPconfig is set and named as s1.vfer.pl -> DNS settings of the domain in the same way as eoglszamy.pl Log in s1.vfer.pl -> mail.info Code: Aug 8 23:40:17 s1 postfix/smtpd[2059]: connect from kowalec.pl[86.105.52.240] Aug 8 23:41:46 s1 postfix/smtpd[1658]: timeout after CONNECT from kowalec.pl[86.105.52.240] Aug 8 23:41:46 s1 postfix/smtpd[1658]: disconnect from kowalec.pl[86.105.52.240] commands=0/0
Where are the logs for the server with the problem? You seem to have shown the outbounds logs which you said you have no trouble with. The receiving server logs are what we need to see. Are there any mail logs? of no mail logs, are there any fail2ban or ufw logs to show.
Okay, I see nothing being banned in there so its not fail2ban causing an issue, no ufw logs suggest its not active. sudo ufw status You can use mxtoolbox (its a website) to look into mail problems, it does a whole lot more besides that but it will also give you useful information about your mail server. Could be it identifies the problem for you. https://mxtoolbox.com/ As an aside so as not to divert from your issue: reconfigure your fail2ban ssh acl and set the max to no more than 3 that should cut out a lot of ssh calls. Personally I have my max set to 1 and they get banned. I also make sure my own ip doesn't get banned in the process should I mistype a password.
it looks like you're port forwarding from your firewall to the actual hosting server. is that actually working properly? is postfix running? is port 25 open on the server itself? i'm connecting, at least to the firewall, but it's not returning anything back. Code: telnet mail.eoglaszamy.pl 25 Trying 79.162.235.144... Connected to mail.eoglaszamy.pl. Escape character is '^]'. ehlo scl.co.uk quit i would expect to see something like this: Code: telnet mail.scl.co.uk 25 Trying 18.202.128.131... Connected to mail.scl.co.uk. Escape character is '^]'. 220 mail.scl.co.uk ESMTP EHLO scl.co.uk 250-mail.scl.co.uk 250-PIPELINING 250-SIZE 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250 SMTPUTF8 quit 221 2.0.0 Bye Connection closed by foreign host.