stephen liu avzeaagyahoocom hi folks ubuntu 704 server amd64 postfix 238 squirrelmail version 1411 etcpostfixmaincf must comment following line mailbox_command procmail extension otherwise users cant receive mails send mails trying whole day without solution problem commenting abovementioned line tia br stephen l send instant messages online friends httpukmessengeryahoocom wed 06 aug 2008 083533 0800 users cant receive mails