Unfortunately it looks like Horde’s Imp webmail system and SpamAssassin don’t agree on how to deal with dynamic ip addresses sending email.
If you connect to a webmail system running running Imp and send a message using your home web browser on a cable modem connection, that ip address gets loged in the headers of the email you sent. Which is good, because postmasters can use that info to trace the mail. However SpamAssassin sees that dynamic ip address in the headers, and adds a lot of points thinking it was sent directly from a home cable connection.
My only hope is that one or the other will find a way to fix the problem. In the mean time my only workaround is to create a SpamAssassin rule that will subtract a bunch of points if the message is sent from our webmail system.
If anyone knows more details or can give me a better work around, I would really appreciate it.
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