Is there a downside to whitelist auth? Seems like its purpose is to ensure mail that originates from my server gets delivered to recipients on that same server.
The only one that I can think of is the potential that one of your clients starts spamming from their AUTH'd account and gets your server blacklisted. I have a pretty trustworthy base of users in mostly pretty small businesses, and I don't have hardly any concern for what might happen...though I'm using IMail 7 right now and couldn't use this feature if I wanted to :)
The best use for this is non-LAN users that might find themselves sending from blacklisted networks themselves. It also helps with at least one of the filters that I wrote so as to not score AUTH's senders for having a dynamic IP...but I've never seen anything come close to fail because of that.
--- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)]
--- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
