Hello Dan,

 Any idea why it complains with SSL read: 
error:00000000:lib(0):func(0):reason(0), errno 54?

You'd have to look up the OpenSSL documentation to see what errno 54
means, but if the next line can be believed and errno=32 is actually a
syscall error, then it's EPIPE - Broken pipe. It sound like it's just
that the remote server has closed the connection.

Thank you, but the OpenSSL error code 00000000 says nothing. I can not find any 
error 54 for OpenSSL :-(

It might be some timeout, as the logfiles says there have been 70 seconds time 
between. Maybe that is to long.

Does libcurl make a new connection and retry when this happens? If not, then it
probably should.

No, it simply fails like in my log:

2012-12-06 15:34:59 : CURL: MAIL FROM:<[email protected]>
2012-12-06 15:34:59 : CURL: SSL read: error:00000000:lib(0):func(0):reason(0), 
errno 54
2012-12-06 15:34:59 : CURL: SSL_write() returned SYSCALL, errno = 32
2012-12-06 15:34:59 : CURL: Closing connection #0
2012-12-06 15:34:59 : CURL: Failure when receiving data from the peer

I think it should reconnect then but it does not.

I will try some modification of my code to only re-use connections if they are 
not older than 20 seconds. Maybe this fixes my problems. I will report here 
next week.

Best,

Volker
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