Will my email always be received using a Non-Fastmail personality?

elgata · 22 Oct 2007, 02:02 AM

Will I have any problems with an email sent from my Fastmail account using a Non-Fastmail personality e.g. XXXX@yahoo.com?
In other words, will the receiptant's mailserver possibly reject my email because I didn't sent my email from yahoo.com but Fastmail?

n5bb · 22 Oct 2007, 02:48 AM

Welcome to the EMD Forums, elgata!

In general, you won't have any trouble sending with Fastmail when specifying a different From address. But if the recipient looks at the full headers, they will see that the message was not sent from Yahoo servers (to use your example).

To make you feel better about this, I performed the following tests, sending from the Fastmail web interface:

Sending a message to my Yahoo address, setting From as another Yahoo address.
Sending a message to my Yahoo address, setting From as a GMail address.
Sending a message to my GMail address, setting From to a Yahoo address.

All messages were immediately delivered properly. When checking the full headers, both Yahoo and GMail gave neutral SPF and authentication results. I could see nothing which would indicate any problem.

Bill

MikeL · 22 Oct 2007, 02:28 PM

I have seen rejections in the past because of that; it seemed as though AOL in particular would reject my email if I tried to send it from FastMail with a non-FM from address. Since I got my own domain, and have FastMail host it, those problems have disappeared, as far as I can tell. It's been a long time since I've tried it, though.

-Mike

22 Oct 2007, 02:02 AM	#1
elgata Junior Member Join Date: Oct 2007 Posts: 1	Will my email always be received using a Non-Fastmail personality? Will I have any problems with an email sent from my Fastmail account using a Non-Fastmail personality e.g. XXXX@yahoo.com? In other words, will the receiptant's mailserver possibly reject my email because I didn't sent my email from yahoo.com but Fastmail?

22 Oct 2007, 02:48 AM	#2
n5bb Intergalactic Postmaster Join Date: May 2004 Location: Irving, Texas Posts: 8,929	No problem sending from different address Welcome to the EMD Forums, elgata! In general, you won't have any trouble sending with Fastmail when specifying a different From address. But if the recipient looks at the full headers, they will see that the message was not sent from Yahoo servers (to use your example). To make you feel better about this, I performed the following tests, sending from the Fastmail web interface: Sending a message to my Yahoo address, setting From as another Yahoo address. Sending a message to my Yahoo address, setting From as a GMail address. Sending a message to my GMail address, setting From to a Yahoo address. All messages were immediately delivered properly. When checking the full headers, both Yahoo and GMail gave neutral SPF and authentication results. I could see nothing which would indicate any problem. Bill

22 Oct 2007, 02:28 PM	#3
MikeL Essential Contributor Join Date: Apr 2002 Posts: 326	I have seen rejections in the past because of that; it seemed as though AOL in particular would reject my email if I tried to send it from FastMail with a non-FM from address. Since I got my own domain, and have FastMail host it, those problems have disappeared, as far as I can tell. It's been a long time since I've tried it, though. -Mike