TLS/SSL SMTP Stops Talking To Server With OpenSSL (Doc ID 1487748.1)

Last updated on FEBRUARY 14, 2024

Applies to:

Symptoms

When trying to test STARTTLS/SMTP SUBMIT, the server does not respond to any commands. TLS negotiation is successful but stops talking from there.

# more tcp_submit_slave.log-0M9J00G05GUVPJ00
15:52:07.94: Debug output enabled, program version V7.4 compiled Jul 13 2012 15:40:31
15:52:07.94: Oracle Communications Messaging Server shared library version 7u4-26.01 linked 15:33:12, Jul 13 2012
15:52:07.94: SMTP server initiated on socket 11
15:52:07.94: Received connection from @localhost 127.0.0.1
15:52:07.94: Transport/application information for connection: TCP 127.0.0.1 587 127.0.0.1 40219 SMTP
15:52:07.94: Applying PORT_ACCESS mapping to "TCP 127.0.0.1 587 127.0.0.1 40219"
15:52:07.94: PORT_ACCESS result:
15:52:07.94: Ruleset:
15:52:07.94: Realm:
15:52:07.94: Sending    : "220-<HOSTNAME> -- Server ESMTP (Oracle Communications Messaging Server 7u4-26.01(7.0.4.26.0) 64bit (built Jul 13 2012))"
15:52:07.94: Session/transaction timer check
15:52:07.94: Received   : "EHLO <HOSTNAME>"
15:52:07.94: Remote host IDENT information: localhost  127.0.0.1
15:52:07.94: Sending    : "250-<HOSTNAME>"
15:52:07.94: Sending    : "250-8BITMIME"
15:52:07.94: Sending    : "250-PIPELINING"
15:52:07.94: Sending    : "250-CHUNKING"
15:52:07.94: Sending    : "250-DSN"
15:52:07.94: Sending    : "250-ENHANCEDSTATUSCODES"
15:52:07.94: Sending    : "250-EXPN"
15:52:07.94: Sending    : "250-HELP"
15:52:07.94: Sending    : "250-XADR"
15:52:07.94: Sending    : "250-XSTA"
15:52:07.94: Sending    : "250-XCIR"
15:52:07.94: Sending    : "250-XGEN"
15:52:07.94: Sending    : "250-XLOOP 2F436060BDE81A4C3C7EBEAB5AAC0400"
15:52:07.94: Sending    : "250-STARTTLS"
15:52:07.94: Sending    : "250-NO-SOLICITING"
15:52:07.94: Sending    : "250 SIZE 0"
15:52:07.94: Received   : "STARTTLS"
15:52:07.94: Sending    : "220 2.5.0 Go ahead with TLS negotiation.
15:52:07.96: TLS ignore bad certificate flag = 1
15:52:07.98: TLS negotiation accepted
15:52:07.98: Attempting channel switch to: tcp_secure                      
15:52:07.98: Channel switch successful
15:52:10.69: os_smtp_read: network read returned no data
15:52:10.69: smtpc_enqueue returning a status of 201 (Basic no)
15:52:10.69: SMTP routine failure from SMTPC_ENQUEUE
15:52:10.69: pmt_close: status 0

Changes

Cause

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