Is it annoying to receive this kind of message in your mailbox or from your Contact Form’s email notification, right?
Most of the time, even having re-Captcha on your Contact Form is not enough to get rid of it.
Here’s what you can do to drastically reduce or totally eradicate it using your cPanel’s Global Email Filters :
cPanel >> EMAIL (section) >> Global Email Filters
Click ‘Create a New Filter’ button
Fill out the Filter Name and label the filter accordingly.
Then for the rules, choose ‘Body‘, ‘contains‘ then put of the common and obvious non-English characters. Like д , б , щ , й , л , ж
Choose ‘Discard Message‘ from ‘Actions’
After that, hit ‘Create‘ button.
But this will not end here, the spammer might use another foreign language or set of characters to by-pass your filter, if that happens, simply improve your rules by adding the new set of characters to be blocked.