I have email coming from sprintpcs that can come from several domains.

I have

sprint.
sprintpcs.com   .sprintip.net


So that will take care of sprint matching sprint, and sprintpcs.com matching mail from .sprintip.net

But need to add a third possible domain of .lightsurf.net

Unfortunately, that isn't possible yet.


so do I just add the line

sprintpcs.com .lightsurf.net

after the first two lines or will it fail before this?

The line "sprint." will require any return address that includes "sprint." to have a reverse DNS entry with "sprint." in it. The "sprintpcs.com .sprintip.net" line requires any return address with "sprintpcs.com" in it to have either sprintpcs.com or .sprintip.net in the reverse DNS entry. However, and Email from host.lightsurf.net won't pass that test, so it doesn't matter what other lines follow.


In this case, the best you could do probably would be to have one line "sprint .lightsurf.net" (so that any return address with "sprint" in it would have to have either "sprint" or ".lightsurf.net" in the reverse DNS entry).

-Scott
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