Email meteor messages - replies will not be sent to the sender address

Question

I have a Meteor application using useraccounts:core for users, and my own Mailgun account is configured for MAIL_URL ; I also configured the from address as "MYNAME < [e-mail] >" .

When a user signs up, a verification email is sent just fine. The problem is that when the user clicks "reply", he answers to their address, and not to my address .

I have no idea what might be the problem, or is it related to Meteor, Mailgun or Gmail.

As for Gmail: I looked at the same email on a different platform, and the response worked as expected (going to the right address).

What I tried:

• When I delete any setting, for example the setting of the from address, it returns to the default meteor email ( [e-mail] ), and the response works as expected
• When I do the Email.send(to, from, etc.) , the answer works as expected
• I tried replyTo header - Accounts.emailTemplates.headers = {replyTo : " [e-mail] "} - no effect

However, I still cannot diagnose where this problem occurs. It seems like it is limited to gmail, but only in some cases (where from installed). Any help is greatly appreciated.

Finally, it may be a duplicate of Meteor Mailgun's reply to letters that are not sent from the "from" address , but I am sending a separate question because there is not enough information to make sure, and they did not try the things that I tried.