John, Yes it will cause problems - particularly with AOL who is the biggest proponent of reverse lookup. Here's how we get around that for a customer (webbrochures.net).
1. Set up a catch all account for YOUR on the mail server. Any mail that does not have a correct username will end up here. 2. Send from a unique email address at YOUR domain that does NOT have a mailbox on the mail server - bounces and replies will end up going back into your catchall account. 3. Retrieve mail from the catchall mail box and forward it appropriately. -mark -----Original Message----- From: Burns, John D [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 09, 2005 9:53 AM To: CF-Talk Subject: SOT: CFMAIL reverse DNS question This question is more about servers that receive mail from a cfmail tag than it is about actually generating mail using cfmail. I figured someone here may know the answer. I know many mail servers now do reverse DNS lookups to make sure the mail server connecting is actually who it says it is and that the mail can come from there. My question is if you had a site that allowed people to send e-cards or something like that to friends and you had it so they could enter their email address and wanted it to show up as the "from" address on the email, is that very reliable since their domain isn't on your server? Will this cause problems with delivery? Is it better to send it from an account that is on your mail server? Just curious how this is handled. I know the attempt to block out spam is a good thing but I'm wondering how we as developers are going to handle some of these things that our users have come to expect on the net. Any thoughts/ideas from any mail server/spam gurus would be helpful. John Burns Certified Advanced ColdFusion MX Developer Wyle Laboratories, Inc. | Web Developer ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:214176 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
