DNS Setting

Post fix Log

Oct 25 15:51:17 trg postfix/smtpd[26000]: connect from unknown[45.125.65.121]
Oct 25 15:51:17 trg postfix/smtpd[26000]: warning: unknown[45.125.65.121]: SASL LOGIN authentication failed: Invalid authentication mechanism
Oct 25 15:51:17 trg postfix/smtpd[26000]: lost connection after AUTH from unknown[45.125.65.121]
Oct 25 15:51:17 trg postfix/smtpd[26000]: disconnect from unknown[45.125.65.121]
Oct 25 15:51:55 trg postfix/smtpd[26000]: connect from mail-ot1-f69.google.com[209.85.210.69]
Oct 25 15:51:55 trg postfix/smtpd[26000]: lost connection after STARTTLS from mail-ot1-f69.google.com[209.85.210.69]
Oct 25 15:51:55 trg postfix/cleanup[26635]: AF61D4894EC: message-id=[email protected]
Oct 25 15:51:55 trg postfix/qmgr[10562]: AF61D4894EC: from=[email protected], size=952, nrcpt=1 (queue active)
Oct 25 15:51:55 trg postfix/smtpd[26000]: disconnect from mail-ot1-f69.google.com[209.85.210.69]
Oct 25 15:51:55 trg postfix/pipe[26642]: AF61D4894EC: to=[email protected], orig_to=, relay=dovecot, delay=0.08, delays=0.05/0.02/0/0.02, dsn=2.0.0, status=sent (delivered via dovecot service)
Oct 25 15:51:55 trg postfix/qmgr[10562]: AF61D4894EC: removed
Oct 25 15:53:18 trg postfix/anvil[25305]: statistics: max connection rate 1/60s for (smtp:190.213.10.158) at Oct 25 15:43:58
Oct 25 15:53:18 trg postfix/anvil[25305]: statistics: max connection count 1 for (smtp:190.213.10.158) at Oct 25 15:43:58
Oct 25 15:53:18 trg postfix/anvil[25305]: statistics: max cache size 3 at Oct 25 15:44:08
Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: TLS library problem: 26796:error:0200100D:system library:fopen:Permission denied:bss_file.c:402:fopen(‘/etc/pki/dovecot/certs/dovecot.pem’,‘r’):
Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: TLS library problem: 26796:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:404:
Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: TLS library problem: 26796:error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib:ssl_rsa.c:701:

Rainloop Log

Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: cannot get RSA certificate from file /etc/pki/dovecot/certs/dovecot.pem: disabling TLS support
Oct 25 15:54:52 trg postfix/smtpd[26796]: warning: TLS library problem: 26796:error:0200100D:system library:fopen:Permission denied:bss_file.c:402:fopen(‘/etc/pki/dovecot/certs/dovecot.pem’,‘r’):

At this point, I would recommend you to submit ticket https://cyberpanel.net/support