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wonder if anyone could help. We have used Bruce's anti-spam document for years (thank you). We have recently updated and found that mail from gmail accounts were not arriving.
We are trying to track what the issue could be. We feel its SMTP blocking on one or several of the RBL checks causing a block, but since these would not enter the spool they don't show in the logs (SMTP).
I there a way to find what emails are being blocked from entering the spool (i.e. a log) or any other suggestions how best to track the issue, apart from not using SMTP blocking.