> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Paul Cocker > Sent: Friday, 5 September 2008 11:56 PM > To: postfix-users@postfix.org > Subject: RE: [SPAM?] Re: First Time Configuration assistance > > With an ever changing list of over 600 e-mail addresses, > manually maintaining relay_recepient_maps doesn't strike me > as appealing, or practical. > > Unsurprisingly we have an AD back-end, is there any way for > the two to communicate? I see this as being the only > practical way to check valid recipients, though let me know > if there is a better way. > > Thanks for all the advice. > > Paul Cocker >
And for where you are using Postfix as a "bridgehead" server and relaying to multiple Exchange hosts, I have a solution that builds on a script that grabs all the valid email recipients from the AD: http://postfixnotes.wiki.zoho.com/HomePage.html. I also prefer not to be doing constant AD lookups for mail from servers in the DMZ - it's a wee bit better for performance to have the map files sitting on the Postfix servers.