Google GMAIL Failures with spam Filters is HUGE in SpamCop Forum Posted July 16, 2019 This is to help innocent people realise how poor Google GMAIL (Free) filters are. The following tests recorded massive failures: 1. From field - if you put in any wildcards such as the following the filter will start capturing false positives and you will end up filtering innocent emails from:(*@*.*.ar) will filter addresses such as firstname.lastname@example.org Therefore job sites use long links and if they have an ar as in this scenario in any part of the domain it will be filtered even though the filter is specific. The spammers do this to stuff your filters up. They study what is put into AbuseIPDB and SPAMCOP to screw the user making a complaint. ADVICE - only use a minimum of 2 parts which is not always possible e.g. *@*.com.ar (Go fix or delete these immediately as Googles AI and highly paid idiots are too dumb) They won't hire me as they would need to get rid of there playtime slides and become professionals instead of little energetic juveniles which the company tries to use to sack older staff. 2. Subject field - the spammers have found another huge hole in the filter system The spammers change the case of the word you filter in the original headers. GMAIL fails to translate the character sets to what you see on the email message nor does it ignore case which should be mandatory in any simpleton model. subject:(bitcoin) subject:(Bitcoin) The above work only sometimes. Cases that fail totally: bitCOin is the spelling in the headers but the email shows bitcoin In the headers if strange character sets are used GMAIL can't interpret them as foreign and uses best look when the email shows. Also if there is punctuation next to the word it may also fail. SUMMARY - Google is failing with basic filters. It does not translate characters in headers directly to the email presentation which screws basic users so filters become annoying. You need to be a pro to know this so the google certified staff are idiots at best. Wildcards are stuffed and the POSIX rules are poorly implemented. Google AI is bullsh** as humans create the algorithms so some Google employees are sh** kickers at best. The above are basic for a pro to find and fix. Most users are not pros and nor should they be. These are 20 year old holes. Hire another stupid kid who likes slides. SCUM company.