K bharathan: > hi all > the following is the log from my relay for example.com; this is read receipt > which failed; this is happening only with this client domain; > > Nov 18 20:13:59 relay2 postfix/smtpd[4225]: NOQUEUE: reject: RCPT from > ex.2n.cz[90.182.112.11]: 451 4.3.5 Server configuration error; from=<> to=<
Postfix sends problem details to the maillog file. http://www.postfix.org/DEBUG_README.html#logging Wietse
