I can receive but I can not send emails. I already changed port 25 to 2525 because I use GoogleCloudPlatform.
I am using this guide:
“SETUP EXTERNAL SMTP ON GOOGLE CLOUD PLATFORM (GCP)”
this is my log:
Sep 12 18:33:24 aldecospa postfix/smtpd[3399]: connect from unknown[178.141.251.45]
Sep 12 18:33:25 aldecospa postfix/smtpd[3399]: warning: unknown[178.141.251.45]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:33:25 aldecospa postfix/smtpd[3399]: disconnect from unknown[178.141.251.45]
Sep 12 18:33:43 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=3934, TLS, session=<9SdAWLN1vgAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:33:43 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=89 out=860
Sep 12 18:33:43 aldecospa postfix/smtpd[3057]: connect from unknown[115.159.198.130]
Sep 12 18:33:44 aldecospa postfix/smtpd[3057]: warning: unknown[115.159.198.130]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:33:44 aldecospa postfix/smtpd[3057]: disconnect from unknown[115.159.198.130]
Sep 12 18:33:54 aldecospa postfix/smtpd[3399]: connect from 61-69-50-110.per.static-ipl.aapt.com.au[61.69.50.110]
Sep 12 18:33:55 aldecospa postfix/smtpd[3399]: warning: 61-69-50-110.per.static-ipl.aapt.com.au[61.69.50.110]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:33:55 aldecospa postfix/smtpd[3399]: disconnect from 61-69-50-110.per.static-ipl.aapt.com.au[61.69.50.110]
Sep 12 18:34:44 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=3952, TLS, session=<uE7ZW7N1ygAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:34:44 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=28 out=769
Sep 12 18:34:44 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=3954, TLS, session=<I8HdW7N1zAAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:34:44 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=96 out=867
Sep 12 18:34:49 aldecospa postfix/smtpd[3057]: connect from unknown[167.250.182.64]
Sep 12 18:34:50 aldecospa postfix/smtpd[3057]: warning: unknown[167.250.182.64]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:34:50 aldecospa postfix/smtpd[3057]: disconnect from unknown[167.250.182.64]
Sep 12 18:35:14 aldecospa postfix/smtpd[3399]: connect from unknown[115.159.198.130]
Sep 12 18:35:15 aldecospa postfix/smtpd[3399]: warning: unknown[115.159.198.130]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:35:15 aldecospa postfix/smtpd[3399]: disconnect from unknown[115.159.198.130]
Sep 12 18:35:43 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=3970, TLS, session=<zYNnX7N12AAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:35:43 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=89 out=860
Sep 12 18:35:56 aldecospa postfix/qmgr[1367]: 7FC431398BF: from=<[email protected]>, size=1175, nrcpt=1 (queue active)
Sep 12 18:36:26 aldecospa postfix/smtp[3975]: connect to nam.olc.protection.outlook.com[104.47.36.33]:25: Connection timed out
Sep 12 18:36:36 aldecospa postfix/smtpd[3399]: warning: hostname apiex.gov.mz does not resolve to address 197.249.5.116: Name or service not known
Sep 12 18:36:36 aldecospa postfix/smtpd[3399]: connect from unknown[197.249.5.116]
Sep 12 18:36:37 aldecospa postfix/smtpd[3399]: warning: unknown[197.249.5.116]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:36:37 aldecospa postfix/smtpd[3399]: disconnect from unknown[197.249.5.116]
Sep 12 18:36:46 aldecospa postfix/smtpd[3399]: connect from unknown[115.159.198.130]
Sep 12 18:36:47 aldecospa postfix/smtpd[3399]: warning: unknown[115.159.198.130]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:36:47 aldecospa postfix/smtpd[3399]: disconnect from unknown[115.159.198.130]
Sep 12 18:36:50 aldecospa postfix/smtpd[3399]: connect from unknown[154.73.182.24]
Sep 12 18:36:51 aldecospa postfix/smtpd[3399]: warning: unknown[154.73.182.24]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:36:51 aldecospa postfix/smtpd[3399]: disconnect from unknown[154.73.182.24]
Sep 12 18:36:56 aldecospa postfix/smtp[3975]: connect to nam.olc.protection.outlook.com[104.47.37.33]:25: Connection timed out
Sep 12 18:36:56 aldecospa postfix/smtp[3975]: 7FC431398BF: to=<[email protected]>, relay=none, delay=494, delays=434/0.03/60/0, dsn=4.4.1, status=deferred (connect to nam.olc.protection.outlook.com[104.47.37.33]:25: Connection timed out)
Sep 12 18:37:44 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=4011, TLS, session=<RVCSZrN18AAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:37:44 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=89 out=860
Sep 12 18:38:14 aldecospa postfix/smtpd[3399]: connect from unknown[27.72.144.172]
Sep 12 18:38:15 aldecospa postfix/smtpd[3399]: warning: unknown[27.72.144.172]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:38:15 aldecospa postfix/smtpd[3399]: disconnect from unknown[27.72.144.172]
Sep 12 18:38:19 aldecospa postfix/smtpd[3399]: connect from unknown[115.159.198.130]
Sep 12 18:38:19 aldecospa postfix/smtpd[3399]: warning: unknown[115.159.198.130]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:38:20 aldecospa postfix/smtpd[3399]: disconnect from unknown[115.159.198.130]
Sep 12 18:38:28 aldecospa postfix/smtpd[3399]: connect from d5152face.static.telenet.be[81.82.250.206]
Sep 12 18:38:28 aldecospa postfix/smtpd[3399]: warning: d5152face.static.telenet.be[81.82.250.206]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 12 18:38:28 aldecospa postfix/smtpd[3399]: disconnect from d5152face.static.telenet.be[81.82.250.206]
Sep 12 18:38:45 aldecospa dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=::1, lip=::1, mpid=4035, TLS, session=<3684arN1AAAAAAAAAAAAAAAAAAAAAAAB>
Sep 12 18:38:45 aldecospa dovecot: imap([email protected]): Disconnected: Logged out in=311 out=1176