Thanks for your quick response! I followed your guide to set up the SMTP relay but am having no luck. Do you think CyberPanel is misconfigured in a way that could cause it to block the relay? I have not configured any of the DNS entries in CyberPanel. My registrar is Cloudflare and it points to both my website server as well as my email server and everything in that regard is working fine. I’m just not having any luck getting the email from my website server to be sent out.
These are the last 50 lines from my email log in CyberPanel:
Dec 10 13:29:58 localhost postfix/error[100976]: 99061DCDE2: to=[email protected], relay=none, delay=786, delays=786/0.06/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:33:24 localhost postfix/postfix-script[101169]: refreshing the Postfix mail system
Dec 10 13:33:24 localhost postfix/master[100870]: reload – version 3.4.13, configuration /etc/postfix
Dec 10 13:39:55 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, session=<6wysTxy2xt9gf68K>
Dec 10 13:39:55 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, TLS, session=<Ey+wTxy2DuFgf68K>
Dec 10 13:39:55 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, TLS handshaking: SSL_accept() failed: error:1420918C:SSL routines:tls_early_post_process_client_hello:version too low, session=<VD+yTxy2g+Jgf68K>
Dec 10 13:39:56 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session=
Dec 10 13:39:56 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session=
Dec 10 13:39:56 localhost dovecot: imap-login: Error: Diffie-Hellman key exchange requested, but no DH parameters provided. Set ssh_dh=</path/to/dh.pem
Dec 10 13:39:56 localhost dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=96.127.175.10, lip=209.50.50.115, TLS handshaking: SSL_accept() failed: error:141EC044:SSL routines:tls_construct_server_key_exchange:internal error, session=<1Ha7Txy2LOVgf68K>
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 8C86FDC65A: from=<>, size=2571, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 84E96DC5D2: from=<>, size=4335, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 8AEAADC655: from=<>, size=3783, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9593DDCDD5: from=<>, size=4154, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 93B8DDCDC5: from=<>, size=4335, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9074CDCDC2: from=<>, size=4379, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 99CACDC58C: from=<>, size=2939, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9AEB5DC5CD: from=<>, size=3774, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 96835DCDDF: from=<>, size=4171, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 92137DC59D: from=<>, size=3771, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 976DDDCDE0: from=<>, size=4248, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9BD50DC58E: from=<>, size=4157, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9B610DC697: from=<>, size=3772, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9842FDCDE1: from=<>, size=4347, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 9A85BDCDE3: from=<>, size=4255, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/qmgr[101173]: 99061DCDE2: from=<>, size=3772, nrcpt=1 (queue active)
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: no MX host for mail.replogle.us has a valid address record
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: relayhost configuration problem
Dec 10 13:43:24 localhost postfix/smtp[101363]: 8C86FDC65A: to=[email protected], relay=none, delay=1592, delays=1592/0.02/0/0, dsn=4.3.5, status=deferred (Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: no MX host for mail.replogle.us has a valid address record
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: relayhost configuration problem
Dec 10 13:43:24 localhost postfix/smtp[101365]: warning: no MX host for mail.replogle.us has a valid address record
Dec 10 13:43:24 localhost postfix/smtp[101365]: warning: relayhost configuration problem
Dec 10 13:43:24 localhost postfix/smtp[101363]: 84E96DC5D2: to=[email protected], relay=none, delay=1592, delays=1592/0.02/0/0, dsn=4.3.5, status=deferred (Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: no MX host for mail.replogle.us has a valid address record
Dec 10 13:43:24 localhost postfix/smtp[101363]: warning: relayhost configuration problem
Dec 10 13:43:24 localhost postfix/smtp[101365]: 8AEAADC655: to=[email protected], relay=none, delay=1592, delays=1592/0.02/0/0, dsn=4.3.5, status=deferred (Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/smtp[101363]: 9593DDCDD5: to=[email protected], relay=none, delay=1592, delays=1592/0.03/0/0, dsn=4.3.5, status=deferred (Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 93B8DDCDC5: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 9074CDCDC2: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101370]: 9AEB5DC5CD: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 99CACDC58C: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101370]: 92137DC59D: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 96835DCDDF: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 9B610DC697: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101370]: 9BD50DC58E: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 9842FDCDE1: to=[email protected], relay=none, delay=1592, delays=1592/0.05/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101371]: 976DDDCDE0: to=[email protected], relay=none, delay=1592, delays=1592/0.04/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101369]: 99061DCDE2: to=[email protected], relay=none, delay=1592, delays=1592/0.05/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Dec 10 13:43:24 localhost postfix/error[101370]: 9A85BDCDE3: to=[email protected], relay=none, delay=1592, delays=1592/0.05/0/0, dsn=4.3.5, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=mail.mail.replogle.us type=AAAA: Host not found)
Is there a quick way to test configuration changes in terminal…to see if the relay is working?
Thanks!!