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Date: Wed,  9 May 2018 20:03:02 +0200 (CEST)
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Subject: Postfix SMTP server: errors from localhost[::1]
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Transcript of session follows.

 Out: 220 xenoshook.com ESMTP Postfix (Debian/GNU)
 In:  EHLO xenoshook.com
 Out: 250-xenoshook.com
 Out: 250-PIPELINING
 Out: 250-SIZE 10240000
 Out: 250-VRFY
 Out: 250-ETRN
 Out: 250-STARTTLS
 Out: 250-ENHANCEDSTATUSCODES
 Out: 250-8BITMIME
 Out: 250 DSN
 In:  STARTTLS
 Out: 454 4.7.0 TLS not available due to local problem
 In:  RSET
 Out: 250 2.0.0 Ok
 In:  QUIT
 Out: 221 2.0.0 Bye
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