Verifique seu main.cf para smtp_tls_security_level ou smtpd_tls_security_level .
Como posso desativar o TLS no postfix? Eu tenho problemas para enviar e-mail para um host específico, eles disseram que eu deveria desabilitar o TLS, como não estou usando. E-mails não estão chegando ao indamail.hu nunca.
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 220 mail13.indamail.hu ESMTP
Apr 6 16:21:15 server postfix/smtp[12059]: > mail13.indamail.hu[91.83.45.53]: EHLO server.xxx.hu
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250-mail13.indamail.hu
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250-STARTTLS
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250-PIPELINING
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250-8BITMIME
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250-SIZE 10485760
Apr 6 16:21:15 server postfix/smtp[12059]: < mail13.indamail.hu[91.83.45.53]: 250 AUTH LOGIN PLAIN CRAM-MD5
Apr 6 16:21:15 server postfix/smtp[12059]: > mail13.indamail.hu[91.83.45.53]: MAIL FROM:<[email protected]> SIZE=2365 BODY=8BITMIME
Apr 6 16:21:15 server postfix/smtp[12059]: > mail13.indamail.hu[91.83.45.53]: RCPT TO:<[email protected]>
Apr 6 16:21:15 server postfix/smtp[12059]: > mail13.indamail.hu[91.83.45.53]: DATA
Apr 6 16:21:15 server postfix/smtp[12059]: send attr reason = lost connection with mail13.indamail.hu[91.83.45.53] while sending MAIL FROM
Apr 6 16:21:15 server postfix/smtp[12059]: 70B132188649: to=<[email protected]>, relay=mail13.indamail.hu[91.83.45.53]:25, delay=163321, delays=163319/0.02/1.4/0.04, dsn=4.4.2, status=deferred (lost connection with mail13.indamail.hu[91.83.45.53] while sending MAIL FROM)
main.cf contém
smtp_use_tls = no
smtpd_use_tls = no
Verifique seu main.cf para smtp_tls_security_level ou smtpd_tls_security_level .