550 Not Permitted [URGENT]

[123cleaners]

I'm trying to configure our point-of-sale software to send an email through out btconnect business account but I'm getting the following error:

550: Not Permitted.

Settings being used:

Server: smtp.btconnect.com (port 25)

Username: 123cleaners [at] btconnect [dot] com

"Reply-to" email: info [at] 123cleaners [dot] com

I've read many threads that talk about "mail relay" but I'm unsure about how I can do this? Can you please help!?!?!

[mydearcosmo]

I get this same problem every once in a while. I am sure what is the cause of it, but still want to know how exactly I can fix it if it gets back.

[DaveA]

Hi,

Just noticed this thread.

There is an article on the Help and Support site related to Mail Relay, so that should help a bit:

http://btbusiness.custhelp.com/app/answers/detail/c/1995,2003,2946,2997/a_id/9/kw/mail%20relay

Dave