Hi, I'm trying to figure out why the remote server is responding with a "lost connection" error without any further information to indicate why the message was deferred.
If I use telnet and replicate the connection process, I can send a test message. However, messages sent from remote users and forwarded through our server via a .forward file to this remote user's account are deferred with a simple "lost connection" response. How can I get further information as to what the cause may be? Does the below debug help? It appears that it's being deferred immediately after the MAIL FROM, as this debug seems to indicate? Could the TLS error below be the cause? I believe that is a separate issue I have to address, and otherwise seems fine with other servers. smtp_stream_setup: maxtime=300 enable_deadline=0 > mail.sagebiz.com[66.252.104.194]:25: EHLO email.example.com vstream_fflush_some: fd 15 flush 39 vstream_buf_get_ready: fd 15 got 201 < mail.sagebiz.com[66.252.104.194]:25: 250-sagebiz.com < mail.sagebiz.com[66.252.104.194]:25: 250-SIZE 30000000 < mail.sagebiz.com[66.252.104.194]:25: 250-ETRN < mail.sagebiz.com[66.252.104.194]:25: 250-ENHANCEDSTATUSCODES < mail.sagebiz.com[66.252.104.194]:25: 250-X-IMS 3 63253 < mail.sagebiz.com[66.252.104.194]:25: 250-DSN < mail.sagebiz.com[66.252.104.194]:25: 250-VRFY < mail.sagebiz.com[66.252.104.194]:25: 250-AUTH LOGIN NTLM SCRAM-MD5 CRAM-MD5 < mail.sagebiz.com[66.252.104.194]:25: 250-AUTH=LOGIN < mail.sagebiz.com[66.252.104.194]:25: 250-X-AVU 1385496485 < mail.sagebiz.com[66.252.104.194]:25: 250 8BITMIME server features: 0x900b size 30000000 smtp_stream_setup: maxtime=300 enable_deadline=0 > mail.sagebiz.com[66.252.104.194]:25: MAIL FROM:<jenni...@example.com> > SIZE=47452 smtp_stream_setup: maxtime=300 enable_deadline=0 vstream_fflush_some: fd 15 flush 57 warning: TLS library problem: 16575:error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number:s3_pkt.c:337: smtp_get: EOF connect to subsystem private/defer send attr nrequest = 0 send attr flags = 0 send attr queue_id = 1A8AB4055E send attr original_recipient = 39...@example.com send attr recipient = sangel...@denhallinn.com send attr offset = 430 send attr dsn_orig_rcpt = rfc822;39...@example.com send attr notify_flags = 0 send attr status = 4.4.2 send attr diag_type = send attr diag_text = send attr mta_type = send attr mta_mname = send attr action = delayed send attr reason = lost connection with mail.sagebiz.com[66.252.104.194] while sending MAIL FROM vstream_fflush_some: fd 16 flush 356 vstream_buf_get_ready: fd 16 got 10 I've also included the successful telnet test: $ telnet mail.sagebiz.com 25 Trying 66.252.104.194... Connected to mail.sagebiz.com. Escape character is '^]'. 220 mail.sagebiz.com MailSite ESMTP Receiver Version 9.5.4.12 Ready ehlo mail.example.com 250-sagebiz.com 250-SIZE 30000000 250-ETRN 250-ENHANCEDSTATUSCODES 250-X-IMS 3 63253 250-DSN 250-VRFY 250-AUTH LOGIN NTLM SCRAM-MD5 CRAM-MD5 250-AUTH=LOGIN 250-X-AVU 1385496485 250-STARTTLS 250 8BITMIME mail from:<jenni...@example.com> 250 2.0.0 <jenni...@example.com> OK rcpt to:sangel...@denhallinn.com 250 2.0.0 <sangel...@denhallinn.com> OK quit 221 2.0.0 mail.sagebiz.com closing Connection closed by foreign host. Thanks, Alex