Hello I run postfix (postfix-3.5.8-4.el8.x86_64) on my Rocky Linux 8.7 home server I setup postfix and dovecot as a firs step and it seems to be working; meaning I can send and receive mails (I send/returned mail from a gmail account). But I find these error messages in /var/log/maillog and after researching and making changes cannot fix them. I searched on the web and there are many different cases discussed, but...
Feb 5 03:50:12 home postfix/smtps/smtpd[402300]: SSL_accept error from unknown[10.5.2.1]: lost connection Feb 5 03:50:12 home postfix/smtps/smtpd[402300]: lost connection after CONNECT from unknown[10.5.2.1] Feb 5 03:50:12 home postfix/smtps/smtpd[402300]: disconnect from unknown[10.5.2.1] commands=0/0 I do have letsencrypt certificates that seem to be ok (domain wo-lar.com) I added this to the /main.cf config file. smtp_tls_security_level = may meta_directory = /etc/postfix shlib_directory = /usr/lib64/postfix # Log TLS connections smtpd_tls_loglevel = 1 smtp_tls_loglevel = 1 #Force TLSv1.3 or TLSv1.2 smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 smtpd_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 smtp_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 smtp_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 # Postfix to deliver emails to local message store via the dovecot LMTP server mailbox_transport = lmtp:unix:private/dovecot-lmtp smtputf8_enable = no Where do I need to start looking? Thanks for your insights. Wolfgang Rauchholz +34 627 994 977 https://www.linkedin.com/in/wolfgangrauchholz/
