Hi,
Direct experience speaking here, and Rod is correct. IMail identifies itself
as whatever domain is attempting to send from the IMail server. CBL sees
this as spammy, as do Comcast and some others. There seems to be some
controversy as to whether IMail's behavior meets the RFCs - CBL says "tell
Imail to fix this" - but the RFCs are moot when your mail is being blocked.
Once you find yourself on the CBL, go to their site and follow the link.
Declare yourself to be an IMail user. They will respond with some sample
domains issuing from your IP. Check to be sure you haven't been hacked. If
the domains are OK, respond that they are legitimate, and remind them that
you are using IMail.
They should whitelist you permanently in a very short time.
They will NOT whitelist Imail servers pre-emptively. So even if you're just
changing your IP address, you must wait until they start blocking you before
they will take any action. To my mind, this is a serious ethical breach on
their part.
Any mail adminsitrator who blocks solely based on the CBL - or any single
source, for that matter - will lose legitimate mail.
One preventive measure is to send all your outbound mail through a gateway
instead of sending it directly from IMail.
-Dave Doherty
Skywaves, Inc.
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