Hello.

My customer is having problems with his email after we switched his domain to use multistore.

They are getting the following reply on emails sent:
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  city@aws-jjf-33.vip.azurewebsites.windows.net
    (generated from city@secwebsite.no)
    retry time not reached for any host after a long failure period


This is my setup:

Dns for "main store":
firstwebsite.no  10800  A  104.xx.xx.xxx
www.firstwebsite.no  10800  CNAME  mywebsite.azurewebsites.net


Dns for second website:
secwebsite.no  10800  CNAME  www.firstwebsite.no
www.secwebsite.no  10800  CNAME  secwebsite.no