I've been seeing fake or misspelled email addresses come through in my organization's email funnel.

For example, we have a bunch of email addresses where the domain name is misspelled or missing 1 character. (Ex: xxxxx@gmai.com, xxxxx@yaho.com, xxxxx@htmail.com)

The annoying thing is for some of these domains (gmai.com), I can see that our ESP successfully sends emails to that address. But there's never any engagement (probably because they're fake accounts: https://productforums.google.com/forum/#!topic/gmail/i277iLrV3ak)

The email doesn't bounce, and these fake email addresses don't get removed from our email list.

We're thinking our approach should be to create a manual suppression of these common "misspellings". But I'm wondering if anyone else has encountered this and how you've dealt with it.