I have recently received a lot of spam mails that by-pass Gmail Spam Filter. The subject was something like “Appointment” ; “Re: Site Recommendation” ; “I have found the best prices” and etc. The message inside the mail is short without any links. One example :

We are offering an extended list and variety of your favorite M e d products!
With fast discreet trackable U-S.P-S shipping!
Remember to get more and save!
Stop by anytime; trafrx . com

I believe many of you may have a similar spam mail that bypass Gmail Filter System. The only way to stop this is to create a filter to include “U-S.P-S shipping”. Most of the spam mails I got contain this keyword.

In fact this type of spam not only bypass Gmail spam filter but also Mailwasher that I am using to filter POP3 accounts. I am trying to figure out a regular expression that I can use in Mailwasher.