We use two layers of spam filtering as the astaro does not always catch everything, our ISP tags any spam by prefixing the subject line with [Probable Spam]. We have added this to the expression filter so that it gets quarantined on the astaro, but the BIG problem is that users are not allowed to release expression blocked emails from the digest.
Please, Please, Please could you reconsider this policy and make it user configurable whether end users can release these messages in v7.3? As otherwise the sysadmins are the only ones who can release the emails which means more work for us, if our ISP tags one or two wrong.
And I know that it is very commonplace for large companies to have 2 levels of spam filtering.
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