Hello I had the same problem on my first VPS , now that I have switched it again it happens , but I'm not able to find the problem . ( I'm using ISPConfig ) Doing tests , from gmail/hotmail I am able to receive , but to send emails no. From roundcube shows that the message has been sent , but nothing happens . Following my old thread , I will link some logs so maybe you can find where the problem is coming from . ##### cat /var/log/mail.log #I'm replacing my domain by xxxxx ##### Expand: log/mail.log Jul 7 14:15:31 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22603, secured, session=<jCwWchWNgNB/AAAB> Jul 7 14:15:31 server1 dovecot: imap([email protected]): Logged out in=70 out=649 Jul 7 14:15:32 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22605, secured, session=<wfEmchWNgtB/AAAB> Jul 7 14:15:32 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22607, secured, session=<CKQnchWNhNB/AAAB> Jul 7 14:15:32 server1 dovecot: imap([email protected]): Logged out in=318 out=4500 Jul 7 14:15:32 server1 dovecot: imap([email protected]): Logged out in=233 out=1058 Jul 7 14:15:33 server1 postfix/qmgr[1312]: D3139809EF: from=<[email protected]>, size=1752, nrcpt=1 (queue active) Jul 7 14:15:34 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22612, secured, session=<NuFBchWNjNB/AAAB> Jul 7 14:15:34 server1 dovecot: imap([email protected]): Logged out in=32 out=485 Jul 7 14:15:34 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22614, secured, session=<gctDchWNjtB/AAAB> Jul 7 14:15:34 server1 dovecot: imap([email protected]): Logged out in=44 out=592 Jul 7 14:15:55 server1 postfix/smtpd[22628]: connect from localhost[127.0.0.1] Jul 7 14:15:55 server1 postfix/trivial-rewrite[22608]: warning: do not list domain xxxxx..com in BOTH virtual_mailbox_domains and relay_domains Jul 7 14:15:55 server1 postfix/trivial-rewrite[22608]: warning: do not list domain xxxxx..com in BOTH virtual_mailbox_domains and relay_domains Jul 7 14:15:55 server1 postfix/smtpd[22628]: NOQUEUE: filter: RCPT from localhost[127.0.0.1]: <[email protected]>: Sender address triggers FILTER amavis:[127.0.0.1]:10026; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<www.xxxxx.com> Jul 7 14:15:55 server1 postfix/smtpd[22628]: 9676C80A7E: client=localhost[127.0.0.1], sasl_method=LOGIN, [email protected] Jul 7 14:15:55 server1 postfix/cleanup[22629]: 9676C80A7E: message-id=<[email protected]> Jul 7 14:15:55 server1 postfix/qmgr[1312]: 9676C80A7E: from=<[email protected]>, size=626, nrcpt=1 (queue active) Jul 7 14:15:55 server1 postfix/smtpd[22628]: disconnect from localhost[127.0.0.1] ehlo=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=6 Jul 7 14:15:55 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22632, secured, session=<XVKIcxWNoNB/AAAB> Jul 7 14:15:55 server1 dovecot: imap([email protected]): Logged out in=470 out=648 Jul 7 14:15:55 server1 postfix/smtpd[22635]: connect from localhost[127.0.0.1] Jul 7 14:15:55 server1 postfix/trivial-rewrite[22608]: warning: do not list domain xxxxx..com in BOTH virtual_mailbox_domains and relay_domains Jul 7 14:15:55 server1 postfix/smtpd[22635]: E13A380A82: client=localhost[127.0.0.1] Jul 7 14:15:55 server1 postfix/cleanup[22629]: E13A380A82: message-id=<[email protected]> Jul 7 14:15:55 server1 postfix/qmgr[1312]: E13A380A82: from=<[email protected]>, size=1577, nrcpt=1 (queue active) Jul 7 14:15:55 server1 amavis[1723]: (01723-01) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [127.0.0.1]:37698 <[email protected]> -> <[email protected]>, Queue-ID: 9676C80A7E, Message-ID: <[email protected]>, mail_id: y2Y7m1NAv6Po, Hits: -1, size: 626, queued_as: E13A380A82, dkim_new=default:xxxxx..com, 262 ms Jul 7 14:15:55 server1 postfix/smtp[22630]: 9676C80A7E: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.36, delays=0.08/0.01/0.03/0.24, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10027): 250 2.0.0 Ok: queued as E13A380A82) Jul 7 14:15:55 server1 postfix/qmgr[1312]: 9676C80A7E: removed Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22639, secured, session=<Z0iTcxWNqtB/AAAB> Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=70 out=633 Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22641, secured, session=<sT+acxWNrNB/AAAB> Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=318 out=4484 Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22644, secured, session=<lMCacxWNrtB/AAAB> Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=120 out=766 Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to gmail-smtp-in.l.google.com[108.177.119.26]:25: Connection timed out Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to gmail-smtp-in.l.google.com[2a00:1450:4013:c05::1b]:25: Network is unreachable Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to alt1.gmail-smtp-in.l.google.com[2404:6800:4003:c00::1b]:25: Network is unreachable ######## cat /etc/postfix/master.cf ####### Expand: /etc/postfix/master.cf VKIcxWNoNB/AAAB> bash: syntax error near unexpected token `newline' root@server1:~# Jul 7 14:15:55 server1 dovecot: imap([email protected]): Logged out in=470 out=648 bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:55 server1 postfix/smtpd[22635]: connect from localhost[127.0.0.1] bash: Jul: command not found root@server1:~# Jul 7 14:15:55 server1 postfix/trivial-rewrite[22608]: warning: do not list domain xxxx.com in BOTH virtual_mailbox_domains and relay_domains bash: Jul: command not found root@server1:~# Jul 7 14:15:55 server1 postfix/smtpd[22635]: E13A380A82: client=localhost[127.0.0.1] bash: Jul: command not found root@server1:~# Jul 7 14:15:55 server1 postfix/cleanup[22629]: E13A380A82: message-id=<[email protected]> bash: syntax error near unexpected token `newline' root@server1:~# Jul 7 14:15:55 server1 postfix/qmgr[1312]: E13A380A82: from=<[email protected]>, size=1577, nrcpt=1 (queue active) bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:55 server1 amavis[1723]: (01723-01) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [127.0.0.1]:37698 <[email protected]> -> <[email protected]>, Queue-ID: 9676C80A7E, Message-ID: <[email protected]>, mail_id: y2Y7m1NAv6Po, Hits: -1, size: 626, queued_as: E13A380A82, dkim_new=default:xxxx.com, 262 ms bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:55 server1 postfix/smtp[22630]: 9676C80A7E: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.36, delays=0.08/0.01/0.03/0.24, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10027): 250 2.0.0 Ok: queued as E13A380A82) bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:55 server1 postfix/qmgr[1312]: 9676C80A7E: removed bash: Jul: command not found root@server1:~# Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22639, secured, session=<Z0iTcxWNqtB/AAAB> bash: syntax error near unexpected token `newline' root@server1:~# Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=70 out=633 bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22641, secured, session=<sT+acxWNrNB/AAAB> bash: syntax error near unexpected token `newline' root@server1:~# Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=318 out=4484 bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:15:56 server1 dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22644, secured, session=<lMCacxWNrtB/AAAB> bash: syntax error near unexpected token `newline' root@server1:~# Jul 7 14:15:56 server1 dovecot: imap([email protected]): Logged out in=120 out=766 bash: syntax error near unexpected token `(' root@server1:~# Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to gmail-smtp-in.l.google.com[108.177.119.26]:25: Connection timed out bash: Jul: command not found root@server1:~# Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to gmail-smtp-in.l.google.com[2a00:1450:4013:c05::1b]:25: Network is unreachable bash: Jul: command not found root@server1:~# Jul 7 14:16:03 server1 postfix/smtp[22610]: connect to alt1.gmail-smtp-in.l.google.com[2404:6800:4003:c00::1b]:25: Network is unreachable Thanks for the help and your time.
@florian030 You're right Sr . I didn't knew they don't allow it . They suggest API or SendGrid, Mailgun & Mailjet Thank you for the answer
you don't say where your vps is hosted. they are likely blocking every outbound connection to any server with a destination port of 25. some hosting companies will allow it, but severely rate limit the connections. some such as aws, you can request them to configure a reverse lookup record for the vhost's ip. when they do that, they also remove the destination port 25 restrictions, so you can send as much email as you like to wherever you want. so it would be worth checking with your hosting provider if there's anything they can do to unblock outbound port 25 for you.
