Subject: bug#51733: 27.1; Detect impossible email addresses better

From: Eli Zaretskii <[email-masked]>
Date: Wed, 19 Jan 2022 15:03:05 +0200

> From: Lars Ingebrigtsen <[email-masked]>
> Cc: Eli Zaretskii <[email-masked]>,  [email-masked]
> Date: Wed, 19 Jan 2022 13:56:33 +0100
> 
> Robert Pluim <[email-masked]> writes:
> 
> > (textsec-email-suspicious-p "דגבאa <[email-masked]>")
> 
> That is not a valid email address.

??? My INBOX is full of mail from people with such "invalid"
addresses.

What is not valid about it?