EQ Forum Admin
I noticed in the smtpd logs that several days ago the typical status 0 exit of tcpserver turned into status 256 yet emails still seemed to be going out since then, or at least some of them.
The reason for tcpserver returns 256 is generally because the client did not terminate the connection gracefully. This can happen for both bad clients and because of network problems. If the email is delivered successfully (and qmail-smtpd receives the 'ok' from the queue) it is probably not a problem that you need to worry about.