Quick SMTP test with 60s timeout...
DATA response: 354 Start mail input; end with <CRLF>.<CRLF>
Final result: 250 2.6.0 <0d209939-fc8b-4d63-b509-faf817f54ecd@CY4PEPF0000E9D0.namprd03.prod.outlook.com> [InternalId=244641337180679, Hostname=DM6PR02MB6747.namprd02.prod.outlook.com] 9382 bytes in 0.198, 46.242 KB/sec Queued mail for delivery