>>> "AS" == Adam Sjøgren <asjo@koldfront.dk> writes:

> Andreas writes:
>> On Feb 11 2019, Adam Sjøgren <asjo@koldfront.dk> wrote:
>> 
>>> It worked when I tried, as I showed.
>> 
>> It works for me when sent through my primary MTA, but not when sent
>> through an alternative MTA.  Either it depends on the MTA, or
>> sendmail/postfix handles it correctly, but smtpmail-send-it doesn't.

> Ok, I use ... [looks it up]... 'message-send-mail-with-sendmail, and my
> local MTA (providing /usr/sbin/sendmail) is Postfix 3.3.2, the receiving
> MTA in my test is Postfix 3.1.8.

Ok that explains it, I use smtpmail

>   Best regards,

>     Adam