EmailDiscussions.com - View Single Post - 550 - Please turn on SMTP Authentication in your mail client

BritTim · 21 Jul 2019, 06:09 PM

This looks to me like a FastMail restriction that sending of messages between FastMail and the destination MX server must allow encryption. All major mail services do now provide this, but it seems possible that mail.bushbabyglen.com does not.

21 Jul 2019, 06:09 PM	#10
BritTim The "e" in e-mail Join Date: May 2003 Location: mostly in Thailand Posts: 3,095	This looks to me like a FastMail restriction that sending of messages between FastMail and the *destination* MX server must allow encryption. All major mail services do now provide this, but it seems possible that mail.bushbabyglen.com does not.