I have problem with my Mail Server. I've just create Mail Server on my aaPanel. I've just tried once sent-received email from the local user in aaPanel. And it works, but then I see the Statistics "Send Fail" keepin increase until 10 Send Fail, eventho I didnt send any email. how to solve this please? Im afraid something bad happen.
here's the log of email mail.log
Aug 23 08:43:46 aapanel postfix/qmgr[128397]: 35930119CDA: removed
Aug 23 08:45:00 aapanel postfix/submission/smtpd[427858]: connect from unknown[unknown]
Aug 23 08:45:00 aapanel postfix/submission/smtpd[427858]: lost connection after CONNECT from unknown[unknown]
Aug 23 08:45:00 aapanel postfix/submission/smtpd[427858]: disconnect from unknown[unknown] commands=0/0
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: connect from unknown[167.71.39.216]
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: lost connection after CONNECT from unknown[167.71.39.216]
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: disconnect from unknown[167.71.39.216] commands=0/0
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: connect from unknown[104.248.32.9]
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427952]: warning: cannot get RSA private key from file "/etc/ssl/private/ssl-cert-snakeoil.key": disabling TLS support
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427952]: warning: TLS library problem: error:80000002:system library::No such file or directory:../crypto/bio/bss_file.c:297:calling fopen(/etc/ssl/private/ssl-cert-snakeoil.key, r):
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427952]: warning: TLS library problem: error:10080002:BIO routines::system lib:../crypto/bio/bss_file.c:300:
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427952]: warning: TLS library problem: error:0A080002:SSL routines::system lib:../ssl/ssl_rsa.c:367:
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427952]: connect from unknown[64.226.95.19]
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: lost connection after CONNECT from unknown[104.248.32.9]
Aug 23 08:45:01 aapanel postfix/submission/smtpd[427858]: disconnect from unknown[104.248.32.9] commands=0/0
Aug 23 08:45:02 aapanel postfix/submission/smtpd[427952]: lost connection after STARTTLS from unknown[64.226.95.19]
Aug 23 08:45:02 aapanel postfix/cleanup[427884]: 304FC117537: message-id=20240823014502.304FC117537@aapanel.kikifauzi-isi.my.id
Aug 23 08:45:02 aapanel postfix/qmgr[128397]: 304FC117537: from=double-bounce@aapanel.kikifauzi-isi.my.id, size=1135, nrcpt=1 (queue active)
Aug 23 08:45:02 aapanel postfix/submission/smtpd[427952]: disconnect from unknown[64.226.95.19] ehlo=1 starttls=0/1 commands=1/2
Aug 23 08:45:02 aapanel postfix/smtp[427886]: 304FC117537: to=postmaster@aapanel.kikifauzi-isi.my.id, orig_to=<postmaster>, relay=none, delay=0.39, delays=0.27/0/0.11/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=aapanel.kikifauzi-isi.my.id type=AAAA: Host not found)
Aug 23 08:45:02 aapanel postfix/bounce[427888]: warning: 304FC117537: undeliverable postmaster notification discarded
Aug 23 08:45:02 aapanel postfix/qmgr[128397]: 304FC117537: removed
Aug 23 08:48:22 aapanel postfix/anvil[427860]: statistics: max connection rate 1/60s for (submission:45.169.42.135) at Aug 23 08:43:42
Aug 23 08:48:22 aapanel postfix/anvil[427860]: statistics: max connection count 1 for (submission:45.169.42.135) at Aug 23 08:43:42
Aug 23 08:48:22 aapanel postfix/anvil[427860]: statistics: max cache size 4 at Aug 23 08:45:01
Aug 23 08:50:57 aapanel dovecot: imap-login: Disconnected: Aborted login by logging out (no auth attempts in 35 secs): user=<>, rip=87.236.176.213, lip=103.41.206.78, TLS, session=<uTOrAVAg4ZJX7LDV>
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: warning: cannot get RSA private key from file "/etc/ssl/private/ssl-cert-snakeoil.key": disabling TLS support
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: warning: TLS library problem: error:80000002:system library::No such file or directory:../crypto/bio/bss_file.c:297:calling fopen(/etc/ssl/private/ssl-cert-snakeoil.key, r):
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: warning: TLS library problem: error:10080002:BIO routines::system lib:../crypto/bio/bss_file.c:300:
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: warning: TLS library problem: error:0A080002:SSL routines::system lib:../ssl/ssl_rsa.c:367:
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: connect from azpdegb22.stretchoid.com[52.226.2.15]
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: lost connection after UNKNOWN from azpdegb22.stretchoid.com[52.226.2.15]
Aug 23 08:51:11 aapanel postfix/submission/smtpd[428374]: disconnect from azpdegb22.stretchoid.com[52.226.2.15] unknown=0/1 commands=0/1
Aug 23 08:54:31 aapanel postfix/anvil[428376]: statistics: max connection rate 1/60s for (submission:52.226.2.15) at Aug 23 08:51:11
Aug 23 08:54:31 aapanel postfix/anvil[428376]: statistics: max connection count 1 for (submission:52.226.2.15) at Aug 23 08:51:11
Aug 23 08:54:31 aapanel postfix/anvil[428376]: statistics: max cache size 1 at Aug 23 08:51:11