I keep getting messages with different From but the same mailed-by field. I need to mark these messages as spam, but simply doing so doesn't work.Creating filters searches for From values only, so that doesn't work either. How can I mark these messages as spam/ blacklist them by the mailed-by value?
Keep getting spam which have the same mailed-by field. Marking spam doesn't work. Cant create filter based on this. How to mark these as spam?
gmail;spam prevention;gmail filters