mymail.my.com sends mail through its own servers
The email application for phones from http://mymail.my.com/ sends mail through its own servers.
That is: it reads your mail and stores your passwords...
2017-11-23 10:32:35 1eHmvz-0006an-PH <= [email protected] H=f5.my.com [185.30.176.73]
P=esmtpsa X=TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 A=auth_plain:[email protected] S=1383
[email protected] from for [email protected]

DO NOT USE!
Vendor response

They think we are idiots... :)