I have a user who has a droid pro and after changing the MX record, the droid will not connect.
Unable to connect to mail.companyname.com. The options are Settings or Retry. If you retry it does the same thing.
If I go into settings and change anything (click on verify certificate, etc) and then try it tells me Could not connect to the server.
we do not have SSL certs installed, but it worked before the MX change. not sure why changing MX would affect this device, but it has.