In sendmail try using a mailertable: aol.com esmtp:ispmail.isp.net gene/ On Mon, Jun 23, 2003 at 11:38:43PM +0100, Mr. Adam ALLEN wrote: : ... : AOL.com and RoadRunner block incoming mail from IP's that belong to : : I want to instruct sendmail (can be convinced to use postfix easily), to : forward mail for specific domains to the ISP's SMTP server, and all : other mail through my own sendmail. :