Flag messages where reply-to is different from the sender?

[Peter H. Lemieux]

If you have users who subscribe to listservers, I'd be wary about this. 
Often the Reply-To points to the listserver address while the From uses 
the sender's address.

SpamAssassin lets you write rules that key on multiple features of a 
message.  You could look into that.

Peter


On 3/5/20 9:16 AM, Remco Barendse wrote:
> Is there any way to raise a red flag for emails where the reply-to 
> address is different from the original sender ?