[BlueOnyx:25652] Head scratcher - migrated email server

[Colin Jack]

Good morning.

I am currently in the process of migrating my 5208R CTs to 5210R.
I have successfully moved my DNS servers after Michael’s patch on the Easy Migrate.
Last night I started on the first of my email hosts and have a conundrum.

The Easy Migrate appears to have migrated everything correctly but email logins don’t work.
The user can log in okay on the GUI using their credentials but email logins won’t authenticate.

Oct 13 20:02:47 ps3 sendmail[213890]: 29DK2igw213890: ruleset=check_rcpt, arg1=<colin at mainline.co.uk>, relay=cust113-dsl93-89-130.idnet.net [93.89.130.200], reject=550 5.7.1 <colin at mainline.co.uk>... Relaying denied. Proper authentication required.

I have tried setting up a new user but the same happens.

What am I missing? 

Thanks

Colin