48hrs ago, I changed the mx records for my domain to point to a new A record.
Within a few hours I was receiving emails via the new mx entry into my exchange server.
I can send test emails in from domains like btopenworld.com, hotmail.com and excite.co.uk
But when I send an email from the btconnect.com domain via OWA offered by BT the email does not arrive.
If I send the email via my Outlook account from the btconnect.com domain using smtp.btconnect.com it routes into the exchange server fine.
Is this an issue with BT’s OWA server caching my old mx record and not picking up the new old?
Can I force an update, or do I have to wait?
Also how does exchange route replies to emails?
If I reply to a email sent to my btconnect.com account via BT’s OWA it routes fine and appears in my exchange inbox. Does it use the internet headers on the mail to route the message differently and ignore the mx records?
Or do BT use a different smtp servers for sending and a different set for receiving when it comes to the OWA service?