You can enable Boxtrapper on your server if you are using cPanel. Boxtrapper provides this feature. There are some other mail service providers which offer this service, but boxtrapper should be the best solution.
Originally posted by rois Not all hosting provider enables boxtrapper for their clients, though it is available with the newer Cpanel release.
Actually, the cPanel release plays almost no part in it. BoxTrapper is part of cPanel PRO, so your provider could be running EDGE and still not be able to offer it if they don't install PRO.
Just thought I would clarify a bit
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