I'm trying to create a search filter when I receive automated emails .The emails that I want to filter always contain the following format:Gitlab | foo | bar | herp a derpHow can I create a filter for emails that meets the following requirements? Match: Gitlab | But does not match emails with the subject gitlabGitlabWhat I have triedsubject:+Gitlab | subject:Gitlab |subject:Gitlab \|subject:(Gitlab |)subject:(Gitlab |)Yet I find that Gmail matches any email that contains the word gitlab in the subject, regardless if there is a | present. How can I filter just emails with Gitlab |?  
Create Gmail filter that contains a special character
gmail;gmail filters
Unfortunately, you probably can't do what you want.From About Gmail SearchGmail doesn't recognize special search characters like square brackets, parentheses, currency symbols, the ampersand, the pound sign, and asterisksYou'll need to find some other unique information about the messages you want to filter. (Advanced Search Operators)