Thanks to all who responded. I added -R, -H and -l <hostname>. I have no time to figure out which one actually fixed the problem, but it's gone now. I suspected reverse DNS lookups after doing another search of the list archives with some different keywords. Thanks to those who helped.
- tcpserver/qmail/vpopmail/pop3 taking a LONG time Greg Kopp
- RE: tcpserver/qmail/vpopmail/pop3 taking a LONG t... Alexander Jernejcic
- Re: tcpserver/qmail/vpopmail/pop3 taking a LO... markd
- RE: tcpserver/qmail/vpopmail/pop3 taking a LO... Alexander Jernejcic
- Greg Kopp