On 5/6/2010 4:13 AM, Thanachit Vichianchay wrote:
Hi, all

My Postfix  is configured as an email gateway for a domain.
and enable SMTP Authentication, TLS encryption to enhance the security
of email traffic.
but I get many of these warnings in my postfix log.

May  6 12:55:42 mailscan1 postfix/smtpd[19482]: [ID 947731 mail.warning]
warning: network_biopair_interop: error reading 5 bytes from the
network: Connection reset by peer

This is logged when the remote client disconnects in the middle of a TLS-encrypted session.

No mail is lost; the remote client is free to retry sending the message.

If there is one particular site that consistently has this error, they may have an incompatible or broken TLS implementation. To selectively turn off TLS for problem sites, see:

If this seems to happen randomly, or mostly from sites that look like zombies trying to spam you, then you can safely ignore the message.

Hint: next time, ask Google if they've ever heard of an error.

  -- Noel Jones

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