Topic: Mail Missed in 5.1.2 ! Need help!

[Matthew]

I'm using 5.1.2 and got the message "EOF on client fd.  At least they could say goodbye!". Our user report that they can't receive some email from the same sender. Sender send 10 emails to him, but he can receive around 6 email. I checked the maillog and got 2162 of this message during this week. Anyone can help me! Urgent!

[Nathan Fowler]

Are you using stunnel to provide secure SMTP/POP services?  If so, remove the "-n smtp" option from stunnel and append the '-T' option to enable transparant proxy support.

[Matthew]

Thanks for quick reply!
I install 5.1.2 purely in server and gateway mode. Is it already started stunnel?

[Matthew]

But the message "EOF on client fd. At least they could say goodbye!" still happened after run the command "/usr/sbin/stunnel -d smtp -l /usr/sbin/smtpd -T smtp" in root.

[Nathan Fowler]

Were you using stunnel before?  If not, it wont' do anything.  I assumed you were running Stunnel to provide secure SMTP and secure POP3, because I've seen that error message generated before as a result of stunnel.

If so, for SMTP, you should run:

/usr/sbin/stunnel -d smtps -l /usr/sbin/smtpd -T

It appears your stunnel configuration is incorrect, with respect to the "-d smtp" flag as well as the "-T smtp".  It appears "-d smtp" is your root cause because you are causing stunnel to listen on TCP 25, instead of 995.

Perhaps you should re-read http://kepler.covenant.edu/~talarson/ssl/SSL-Email-HOWTO.html

Hope this helped,
Nathan

[Matthew]

No. I haven't. I think that we are not running stunnel at this moment. I face a problem that some users can't connect SMTP/ POP and receive time out message from their mail client software. The maillog shows a large number of "EOF on client fd. At least they could say goodbye!" message. I afraid that they can't send / receive email more than using stunnel as connection method.

Thanks!
Matthew