I get this error in the mail log of the sender:
018-04-04 19:38:37 1f3mMn-0001Hb-EA Sender identification U=quanticosoft D=quanticosoft.com
[email protected]
2018-04-04 19:38:37 1f3mMn-0001Hb-EA SMTP connection outbound 1522863517 1f3mMn-0001Hb-EA quanticosoft.com
[email protected]
2018-04-04...