Hi, I have install ISPConfig following the tuto on Ubuntu. I am able to receive email from the outside, like gmail but I cannot send outside the network. I was thinking it is because of the port 25 but even if I use thunderbird with ssl or tsl, it is not being sent.... however, when i configured thunderbird, i had to add security exeption... i believe, there are an issue with my ssl I certified the subdomain (mail.domain.com) with lets encrypt but I believe it is the wrong approched, as it is used for the domain and most likely not emails.... Here the log file Code: Sep 29 12:58:46 mail amavis[18916]: Found decoder for .exe at /usr/bin/arj Sep 29 12:58:46 mail amavis[18916]: No decoder for .7z Sep 29 12:58:46 mail amavis[18916]: No decoder for .F Sep 29 12:58:46 mail amavis[18916]: No decoder for .doc Sep 29 12:58:46 mail amavis[18916]: No decoder for .iso Sep 29 12:58:46 mail amavis[18916]: No decoder for .jar Sep 29 12:58:46 mail amavis[18916]: No decoder for .lha Sep 29 12:58:46 mail amavis[18916]: No decoder for .lrz Sep 29 12:58:46 mail amavis[18916]: No decoder for .lz4 Sep 29 12:58:46 mail amavis[18916]: No decoder for .rar Sep 29 12:58:46 mail amavis[18916]: No decoder for .rpm Sep 29 12:58:46 mail amavis[18916]: No decoder for .swf Sep 29 12:58:46 mail amavis[18916]: Using primary internal av scanner code for ClamAV-clamd Sep 29 12:58:46 mail amavis[18916]: Found secondary av scanner ClamAV-clamscan at /usr/bin/clamscan Sep 29 12:58:46 mail amavis[18916]: Deleting db files __db.001,nanny.db,__db.003,snmp.db,__db.002 in /var/lib/amavis/db Sep 29 12:58:46 mail amavis[18916]: Creating db in /var/lib/amavis/db/; BerkeleyDB 0.55, libdb 5.3 Sep 29 12:58:56 mail postfix/smtp[18845]: connect to alt1.gmail-smtp-in.l.google.com[64.233.186.26]:25: Connection timed out Sep 29 12:58:56 mail postfix/smtp[18845]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c00::1b]:25: Network is unreachable Sep 29 12:58:56 mail postfix/smtp[18844]: connect to alt1.gmail-smtp-in.l.google.com[64.233.186.26]:25: Connection timed out Sep 29 12:58:56 mail postfix/smtp[18844]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c00::1b]:25: Network is unreachable Sep 29 12:58:56 mail postfix/smtp[18844]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c00::1b]:25: Network is unreachable Sep 29 12:58:56 mail postfix/smtp[18844]: 5DF3F40067: to=<a***@gmail.com>, relay=none, delay=76738, delays=76678/0.05/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c00::1b]:25: Network is unreachable) Sep 29 12:58:56 mail postfix/smtp[18846]: connect to alt1.gmail-smtp-in.l.google.com[64.233.186.26]:25: Connection timed out Sep 29 12:58:56 mail postfix/smtp[18846]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c00::1b]:25: Network is unreachable Sep 29 12:58:56 mail postfix/smtp[18848]: connect to alt1.gmail-smtp-in.l.google.com[64.233.186.27]:25: Connection timed out Sep 29 12:58:56 mail postfix/smtp[18848]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c00::1b]:25: Network is unreachable Sep 29 12:58:56 mail postfix/smtp[18847]: connect to alt1.gmail-smtp-in.l.google.com[64.233.186.26]:25: Connection timed out Sep 29 12:59:26 mail postfix/smtp[18845]: connect to alt2.gmail-smtp-in.l.google.com[209.85.202.27]:25: Connection timed out Sep 29 12:59:26 mail postfix/smtp[18845]: 37CD53FCCE: to=<a***@gmail.com>, relay=none, delay=271134, delays=271044/0.03/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[209.85.202.27]:25: Connection timed out) Sep 29 12:59:26 mail postfix/smtp[18846]: connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out Sep 29 12:59:26 mail postfix/smtp[18846]: D86C93FCDC: to=<a***@gmail.com>, relay=none, delay=199488, delays=199398/0.04/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out) Sep 29 12:59:26 mail postfix/smtp[18847]: connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out Sep 29 12:59:26 mail postfix/smtp[18848]: connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out Sep 29 12:59:26 mail postfix/smtp[18848]: 492CB3FCD8: to=<e***@gmail.com>, relay=none, delay=262040, delays=261950/0.07/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out) Sep 29 12:59:26 mail postfix/smtp[18847]: 471353E9FA: to=<a***@gmail.com>, relay=none, delay=199487, delays=199397/0.06/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[209.85.202.26]:25: Connection timed out) Sep 29 12:59:29 mail dovecot: imap-login: Error: SSL: Stacked error: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca: SSL alert number 48 Sep 29 12:59:29 mail dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=188.154.21.154, lip=66.70.187.203, TLS: SSL_read() failed: Unknown error, session=<4mJpmFNaFNm8mhWa> Sep 29 12:59:31 mail dovecot: imap-login: Error: SSL: Stacked error: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca: SSL alert number 48 Sep 29 12:59:31 mail dovecot: imap-login: Disconnected (no auth attempts in 1 secs): user=<>, rip=188.154.21.154, lip=66.70.187.203, TLS: SSL_read() failed: Unknown error, session=<WpyCmFNaFtm8mhWa> Sep 29 12:59:41 mail postfix/anvil[18672]: statistics: max connection rate 1/60s for (smtp:80.82.78.61) at Sep 29 12:53:30 Sep 29 12:59:41 mail postfix/anvil[18672]: statistics: max connection count 1 for (smtp:80.82.78.61) at Sep 29 12:53:30 Sep 29 12:59:41 mail postfix/anvil[18672]: statistics: max cache size 1 at Sep 29 12:53:30 Sep 29 13:00:02 mail dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<ckJbmlNa3Lh/AAAB> Sep 29 13:00:02 mail dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<YklbmlNaIJl/AAAB> Sep 29 13:00:02 mail postfix/smtpd[19044]: connect from mail.domain.ovh[127.0.0.1] Sep 29 13:00:02 mail postfix/smtpd[19044]: lost connection after CONNECT from mail.domain.ovh[127.0.0.1] Sep 29 13:00:02 mail postfix/smtpd[19044]: disconnect from mail.domain.ovh[127.0.0.1] commands=0/0 Sep 29 13:01:55 mail postfix/submission/smtpd[19444]: connect from xdsl-188-154-21-154.adslplus.ch[188.154.21.154] Sep 29 13:01:56 mail postfix/submission/smtpd[19444]: warning: TLS library problem: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca:s3_pkt.c:1487:SSL alert number 48: Sep 29 13:01:56 mail postfix/submission/smtpd[19444]: lost connection after STARTTLS from xdsl-188-154-21-154.adslplus.ch[188.154.21.154] Sep 29 13:01:56 mail postfix/submission/smtpd[19444]: disconnect from xdsl-188-154-21-154.adslplus.ch[188.154.21.154] ehlo=1 starttls=1 commands=2 Sep 29 13:02:11 mail postfix/submission/smtpd[19444]: connect from xdsl-188-154-21-154.adslplus.ch[188.154.21.154] Sep 29 13:02:12 mail postfix/submission/smtpd[19444]: NOQUEUE: filter: RCPT from xdsl-188-154-21-154.adslplus.ch[188.154.21.154]: <[email protected]>: Sender address triggers FILTER amavis:[127.0.0.1]:10026; from=<[email protected]> to=<a***@gmail.com> proto=ESMTP helo=<[192.168.1.25]> Sep 29 13:02:12 mail postfix/submission/smtpd[19444]: B0F3A3E9BF: client=xdsl-188-154-21-154.adslplus.ch[188.154.21.154], sasl_method=PLAIN, [email protected] Sep 29 13:02:13 mail postfix/cleanup[19469]: B0F3A3E9BF: message-id=<[email protected]> Sep 29 13:02:13 mail postfix/qmgr[18644]: B0F3A3E9BF: from=<[email protected]>, size=851, nrcpt=1 (queue active) Sep 29 13:02:13 mail postfix/submission/smtpd[19444]: disconnect from xdsl-188-154-21-154.adslplus.ch[188.154.21.154] ehlo=2 starttls=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=8 Sep 29 13:02:14 mail dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=188.154.21.154, lip=66.70.187.203, mpid=19476, TLS, session=</Qg5olNaINm8mhWa> Sep 29 13:02:14 mail dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=188.154.21.154, lip=66.70.187.203, mpid=19477, TLS, session=<cno5olNaItm8mhWa> Sep 29 13:02:14 mail dovecot: imap([email protected]): Logged out in=753 out=833 Sep 29 13:02:14 mail postfix/smtpd[19478]: connect from mail.domain.ovh[127.0.0.1] Sep 29 13:02:14 mail postfix/smtpd[19478]: E4D493E9C8: client=mail.domain.ovh[127.0.0.1] Sep 29 13:02:14 mail postfix/cleanup[19469]: E4D493E9C8: message-id=<[email protected]> Sep 29 13:02:14 mail postfix/qmgr[18644]: E4D493E9C8: from=<[email protected]>, size=1289, nrcpt=2 (queue active) Sep 29 13:02:14 mail amavis[18942]: (18942-01) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [188.154.21.154]:44634 [188.154.21.154] <[email protected]> -> <a***@gmail.com>, Queue-ID: B0F3A3E9BF, Message-ID: <[email protected]>, mail_id: AGj2_VmjeYeL, Hits: -1, size: 851, queued_as: E4D493E9C8, 1827 ms Sep 29 13:02:14 mail postfix/smtp[19470]: B0F3A3E9BF: to=<a***@gmail.com>, relay=127.0.0.1[127.0.0.1]:10026, delay=2.4, delays=0.56/0.02/0.02/1.8, 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 E4D493E9C8) Sep 29 13:02:14 mail postfix/qmgr[18644]: B0F3A3E9BF: removed thanks for the help and guidance...
Please see these instructions on how to configure your mail server with an LE certificate: https://www.howtoforge.com/communit...l-port-8080-with-lets-encrypt-free-ssl.75554/
Thanks Till, I followed the instruction and I am now on port 8080 certified by LE. I do not have to add security expection on Thunderbird neither. However, I am still not able to send emails to the external here the log Code: Sep 30 09:58:47 mail dovecot: imap(directors@c**r.ovh): Logged out in=461 out=2290 Sep 30 09:58:47 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3326, secured, session=<jWANMGValo1/AAAB> Sep 30 09:58:47 mail dovecot: imap(directors@c**r.ovh): Logged out in=120 out=746 Sep 30 09:58:47 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3327, secured, session=<SIcNMGVamI1/AAAB> Sep 30 09:58:47 mail dovecot: imap(directors@c**r.ovh): Logged out in=54 out=903 Sep 30 09:58:49 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3329, secured, session=<7EsfMGVamo1/AAAB> Sep 30 09:58:49 mail dovecot: imap(directors@c**r.ovh): Logged out in=70 out=612 Sep 30 09:58:49 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3332, secured, session=<N9gmMGVanI1/AAAB> Sep 30 09:58:49 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3333, secured, session=<cP4mMGVano1/AAAB> Sep 30 09:58:49 mail dovecot: imap(directors@c**r.ovh): Logged out in=120 out=746 Sep 30 09:58:49 mail dovecot: imap(directors@c**r.ovh): Logged out in=320 out=16869 Sep 30 09:58:56 mail postfix/qmgr[2068]: 080C64008A: from=<directors@c**r.ovh>, size=2059, nrcpt=2 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: 5DF3F40067: from=<directors@c**r.ovh>, size=1111, nrcpt=2 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: 37CD53FCCE: from=<>, size=5837, nrcpt=1 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: D86C93FCDC: from=<directors@c**r.ovh>, size=1324, nrcpt=2 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: AD3664008B: from=<directors@c**r.ovh>, size=1387, nrcpt=2 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: 471353E9FA: from=<directors@c**r.ovh>, size=1992, nrcpt=2 (queue active) Sep 30 09:58:56 mail postfix/qmgr[2068]: 492CB3FCD8: from=<>, size=12705, nrcpt=1 (queue active) Sep 30 09:58:56 mail postfix/smtp[3335]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c06::1b]:25: Network is unreachable Sep 30 09:58:56 mail postfix/smtp[3337]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c09::1b]:25: Network is unreachable Sep 30 09:59:14 mail postfix/smtp[3302]: connect to gmail-smtp-in.l.google.com[173.194.207.26]:25: Connection timed out Sep 30 09:59:14 mail postfix/smtp[3302]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c09::1b]:25: Network is unreachable Sep 30 09:59:14 mail postfix/smtp[3302]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c01::1a]:25: Network is unreachable Sep 30 09:59:15 mail postfix/smtp[3308]: connect to gmail-smtp-in.l.google.com[173.194.207.26]:25: Connection timed out Sep 30 09:59:26 mail postfix/smtp[3336]: connect to gmail-smtp-in.l.google.com[74.125.22.27]:25: Connection timed out Sep 30 09:59:26 mail postfix/smtp[3336]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c06::1b]:25: Network is unreachable Sep 30 09:59:26 mail postfix/smtp[3336]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c01::1a]:25: Network is unreachable Sep 30 09:59:26 mail postfix/smtp[3335]: connect to gmail-smtp-in.l.google.com[74.125.22.27]:25: Connection timed out Sep 30 09:59:26 mail postfix/smtp[3335]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c01::1b]:25: Network is unreachable Sep 30 09:59:26 mail postfix/smtp[3337]: connect to gmail-smtp-in.l.google.com[74.125.22.27]:25: Connection timed out Sep 30 09:59:45 mail postfix/smtp[3302]: connect to alt1.gmail-smtp-in.l.google.com[64.233.190.26]:25: Connection timed out Sep 30 09:59:45 mail postfix/smtp[3308]: connect to alt1.gmail-smtp-in.l.google.com[64.233.190.26]:25: Connection timed out Sep 30 09:59:45 mail postfix/smtp[3308]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c01::1b]:25: Network is unreachable Sep 30 09:59:45 mail postfix/smtp[3308]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1a]:25: Network is unreachable Sep 30 09:59:45 mail postfix/smtp[3308]: 3DE634008D: to=<a***@gmail.com>, relay=none, delay=60, delays=0.01/0.02/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1a]:25: Network is unreachable) Sep 30 09:59:45 mail postfix/cleanup[3294]: 5011F40090: message-id=<[email protected]**r.ovh> Sep 30 09:59:49 mail postfix/anvil[2849]: statistics: max connection rate 1/60s for (submission:188.154.21.154) at Sep 30 09:49:49 Sep 30 09:59:49 mail postfix/anvil[2849]: statistics: max connection count 1 for (submission:188.154.21.154) at Sep 30 09:49:49 Sep 30 09:59:49 mail postfix/anvil[2849]: statistics: max message rate 1/60s for (submission:188.154.21.154) at Sep 30 09:49:50 Sep 30 09:59:49 mail postfix/anvil[2849]: statistics: max cache size 1 at Sep 30 09:49:49 Sep 30 09:59:49 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3363, secured, session=<VBO7M2VauI1/AAAB> Sep 30 09:59:49 mail dovecot: imap(directors@c**r.ovh): Logged out in=91 out=901 Sep 30 09:59:56 mail postfix/smtp[3336]: connect to alt1.gmail-smtp-in.l.google.com[64.233.190.26]:25: Connection timed out Sep 30 09:59:56 mail postfix/smtp[3336]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable Sep 30 09:59:56 mail postfix/smtp[3335]: connect to alt1.gmail-smtp-in.l.google.com[64.233.190.26]:25: Connection timed out Sep 30 09:59:56 mail postfix/smtp[3335]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable Sep 30 09:59:56 mail postfix/smtp[3336]: 5DF3F40067: to=<a***@gmail.com>, relay=none, delay=152398, delays=152338/0.05/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/smtp[3335]: 080C64008A: to=<a***@gmail.com>, relay=none, delay=604, delays=544/0.03/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/error[3366]: D86C93FCDC: to=<a***@gmail.com>, relay=none, delay=275118, delays=275057/60/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/smtp[3337]: connect to alt1.gmail-smtp-in.l.google.com[64.233.190.26]:25: Connection timed out Sep 30 09:59:56 mail postfix/smtp[3337]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c01::1a]:25: Network is unreachable Sep 30 09:59:56 mail postfix/smtp[3337]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1a]:25: Network is unreachable Sep 30 09:59:56 mail postfix/error[3366]: AD3664008B: to=<a***@gmail.com>, relay=none, delay=605, delays=545/60/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/smtp[3337]: 37CD53FCCE: to=<a***@gmail.com>, relay=none, delay=346764, delays=346704/0.06/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1a]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/error[3366]: 471353E9FA: to=<a***@gmail.com>, relay=none, delay=275117, delays=275057/60/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 09:59:56 mail postfix/error[3366]: 492CB3FCD8: to=<[email protected]>, relay=none, delay=337670, delays=337610/60/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:400b:c03::1b]:25: Network is unreachable) Sep 30 10:00:02 mail postfix/smtpd[3291]: connect from mail.c**r.ovh[127.0.0.1] Sep 30 10:00:02 mail postfix/smtpd[3291]: lost connection after CONNECT from mail.c**r.ovh[127.0.0.1] Sep 30 10:00:02 mail postfix/smtpd[3291]: disconnect from mail.c**r.ovh[127.0.0.1] commands=0/0 Sep 30 10:00:02 mail dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<cWx5NGVaGtJ/AAAB> Sep 30 10:00:02 mail dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<Z3F5NGVayo1/AAAB> Sep 30 10:00:15 mail postfix/smtp[3302]: connect to alt2.gmail-smtp-in.l.google.com[209.85.203.26]:25: Connection timed out Sep 30 10:00:15 mail postfix/smtp[3302]: D6D0F4008E: to=<a***@gmail.com>, relay=none, delay=90, delays=0.01/0.04/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[209.85.203.26]:25: Connection timed out) Sep 30 10:00:49 mail dovecot: imap-login: Login: user=<directors@c**r.ovh>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3815, secured, session=<VMxON2Va2o1/AAAB> Sep 30 10:00:49 mail dovecot: imap(directors@c**r.ovh): Logged out in=91 out=901 thanks again
Yes it is.... any other idea... do we need particular DNS for that. I did not enable yet the DKIM to avoid mistakes here
Thanks, I tried and yes, looks like my hosting provider is blocking it howver, i am confuse here i red somewhere that port 25 was block by many ISP, so not necessary the hosting provider... I tried from my local network and the results slightly better but not going through neither I was thinking by using imap on port 465 or 587 we would avoid port 25... and i cannot send from any... thanks in advance for enlighting me
You are confusing things here... you can avoid port 25 for the communication from your computer to your ISP's mail server. But your ISP can't avoid using port 25 for proper mail communication with other mail servers afaik. And you are trying to be an ISP here.
got it thanks for your lights ;-) so, now I will check with OVH (my hosting provider) if they are blocking port 25.
Hi, I checked with my hosting provider and they confirmed blocking the port 25 however, they confirm that I should be able to send email using port 587... I have been trying to modify the lines in master.cf and main.cf but it is not sending... I got this return email. The mail system thanks for your help!
Neither main.cf nor master.cf has to be modified manually for using a relay server. If you modified them, then the first step is to undo all changes that you made. Then login to ispconfig, go to system > server config > mail and set the relay server there icl. port. When the relay server is e.g. relay.ovh.tld and you want to send to that server on port 587, then you enter this in the relay server field: relay.ovh.tld:587
Thanks Till and sorry for my questions but I am not yet so familiar with all these. Hence, I am trying first and then ask questions ;-) So relayhost is my only option if port 25 is lock from my hosting provider? I tried what you said an it works fine, thanks.
Yes. When your ISP blocks port 25 outgoing, then the only way to send mail from your server directly is to use a relay host that is used by postfix to relay all outgoing email.
