>I want to prepare for the time when most mail systems require a >reverse dns pointer record.
You're *already* at the time when many major MXs (AOL, et al.) will reject you if you don't have a PTR. >Will it be sufficient to set up a reverse pointer record for arriba1.net PTRs aren't "for" host names exactly, they're for IP addresses. >Am I thinking about this in the right way? You're complicating matters. All you need in the majority of cases where PTRs are checked is a PTR record, really any PTR at all, for your sending IP address (the one that connects to remote MXs). In smaller fraction of these tests, the PTR record is required to point to the specific hostname that the sending IP EHLOs as (a name/IP double-check). If you can accomodate the latter (and stricter) the of these requirements, you should have no problems, and you'll only have one PTR per IP. Sandy P.S. This adjustment... >ask my my customers to change their smtp servers in their mail client >to mail.arriba1.net ...has no impact on this issue. It doesn't matter how their MUAs resolve your Imail server's address, or whether they even use a hostname at all (rather than an IP). Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
