On Thu, Aug 03, 2017 at 12:19:55PM +0530, hyndavirap...@bel.co.in wrote: > > He's not posted the configuration of the sending system or > > its logs. This is a waste of everyone's time.
The relevant logging is the TLS-related logging from the sending postfix/smtp client process that happens *before* the message is finally deferred and is enabled via smtp_tls_loglevel=1. > smtp_enforce_tls = yes Instead, "smtp_tls_security_level = encrypt". > smtp_tls_loglevel = 1 > smtp_tls_policy_maps = hash:/etc/postfix/tls_policy Post the relevant tls policy table entry. > smtp_use_tls = yes This is unnecessary. > transport_maps = hash:/etc/postfix/transportmap > > Aug 3 12:11:54 AHQ postfix/smtp[8325]: 4B68168543FC: > to=<cdr.1cor...@1corphq.tcs.mil.in>, orig_to=<cdr.1cor...@tcs.mil.in>, > relay=201.123.1.4[201.123.1.4]:25, delay=34, delays=34/0/0/0, dsn=4.7.5, > status=deferred (Server certificate not verified) The server certificate failed to verify. Perhaps expired, perhaps not issued by the CA you've configured, or a missing intermediate certificate, or the certificate is not suitable for TLS (maybe it has some other extended key usage), or ... > Can you help me to solve this problem Not without the requested logging, and copy of the server and CA certificates. -- Viktor.