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We're using rackspace hosted emails for multiple domains.

We're having email rejected due to being listed on spam block lists

The IP address being listed is

Listing confirmed at

emails bounced back contain msgs like:-

host[] said: 550 5.7.0 550 Server

IP listed as abusive. See for more information.

Protection provided by MagicSpam 1.0.8-1.1 (in

reply to RCPT TO command)


said: 554 5.7.1 The message from (<removed>)

with the subject of (RE: removed.) matches a

profile the Internet community may consider spam. Please revise your

message before resending. (in reply to end of DATA command)

Does anyone know how to avoid this, eg using alternactive smtp addresses?