Does your spam solution allow the user to train it on what is spam vs. ham? If it does, has the exec or admin done that? Also if it does, and he and/or his assistant have done that training, can you take a look at the training database to see if it's working within specified parameters?
The Bayesian databases that I've used require a minimum of 200 emails mark for each kind (spam and ham) and sometimes don't work well if they get too far out of balance (that is, say 201 ham vs. 10k spam). Training a Bayesian database is always an ongoing routine. Stop the training, and eventually the spammers will win. Another thought - if the organization doesn't have contacts outside of your country, can your spam solution block by country source, using IP ranges? Not a usable solution of your organization has cross-border contacts, though. Kurt On Mon, Apr 24, 2017 at 12:50 PM, Adm <sms...@gmail.com> wrote: > Our top exec presently receives a lot of spam, business and other. > His admin is asking us for a solution to this problem, possibly a second > user mailbox or shared mailbox for external email. > We have balancing issues with the anti-spam software quarantining too much > or not enough. > > I'm working on a server side rule that would place all external email into a > specific folder in his mailbox. > > Is anyone out there using other possible alternatives? > > thx in advance