Allow me to explain, while refraining myself who is right or wrong.
https://eai.xgenplus.com is designed and evolving for users to test their own EMAIL ID for the support of EAI.
C:- mail from:<xn--11b7am1g.xn--41b5a5av9azf@xn--c2bd1gb.xn—h2brj9c> - SMTPUTF8 is always added , may be its displayed in next line due to length, please check again.
The system tries many combinations of FROM to the email address (including punycode) you submit and tries various combinations and shows how much EAI it supports.. … Details:-
punycode@punycode(optional) supported
ACE@punycode supported
punycode@unicode(optional) supported
unicode@punycode supported
unicode@unicode supported
That’s roughly what it says for my address too (arnt@gulbrandsen.priv.no) even though none of the software involved in receiving, storing or displaying mail has any idea that punycode exists.
=============== You will notice SMTPUTF8 is added in every FROM.
Yes. I also noticed that there was none in Martin’s test. Why not?
Regarding SPAM , antispam you are using is not ACE aware or considers it bad.
The latter. And the reason it’s considered bad is the way it behaves. Johm already explained that, search for “listwashing”.
Please share your email address with me, i will share the details with you. Happy to receive suggestions.
My email address is arnt@gulbrandsen.priv.no. Arnt