On Mon, Jan 13, 2025 at 11:02:32AM +0100, Patrick Ben Koetter via Postfix-users
wrote:
> Is it a valid mail address if the domainpart ends with a trailing dot. e.g.
> like this: recipi...@example.com.
No. That is not a valid email address, despite the fact that the domain
part of the addres is a valid DNS name. The RFC5321 syntax requires
a "dot-atom" for the domain part, and in a "dot-atom" all the dots
are *internal*. No leading trailing or consecutive dots are allowed.
--
Viktor.
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