On 2021-11-08 09:43:01 +0100, Ansgar Wiechers wrote: > On 2021-11-06 Wietse Venema wrote: > > li...@lazygranch.com: > >> Reply-To: jm84450...@gmail.com > > > > Use header_checks (not body_checks) if you want to block that. > > Still, I would be concerned about rejecting legitimate email. > > It's true that this can reject legitimate e-mail. However, the abuse of > Gmail Reply-To addresses by spammers/scammers is so rampant (at least in > my experience) that on my personal mail server I decided to reject > everything with a Gmail Reply-To except for whitelisted addresses.
FYI, mailing-list software adds "Reply-To:" headers with the e-mail address of the sender, probably because of the "From:" header munging due to DMARC. This also happens with mail sent by Debian's BTS (so that replies are sent to both the sender and the bug address). Some users also use a "Reply-To:" to their address because some mailing-lists otherwise set it back to the list. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
