Comment by jerf
20 hours ago
TXT can't be banned. There are several RFCs that require TXT records, such as DKIM configuration, DMARC configuration, and it is extensively used for verification by things like AWS SES, Microsoft Office, and all kinds of things. It's built into many standards and used by all kinds of other entities for all kinds of perfectly legitimate things.
Did you read my reply without reading the parent I was replying to? I’m talking about not allowing a blocked domain from being able to add new TXT entries as the parent was suggesting. Of course TXT shouldn’t be banned entirely…