Email Delivery To BTINternet.com Addresses Affected On November 12th

By Tom Corbett

Anyone who sent email campaigns to BTInternet.com addresses between about 09:00 and 15:30 on Wednesday Nov 12, ran a risk of their emails not being delivered.

Please don’t blame our client support guys – this was completely out of dotMailer’s hands. The problem was a BT related issue, due as far as we can tell to their difficulties with some BT Yahoo mail servers.

For more detail please see the BT help page which hints at the problem:

12 November 2009
09:31 AM
Consumer email issue
We are aware of a temporary problem with emails which may be causing some customers problem with sending/receiving emails via their web client. We’re sorry if you’ve been affected. Our engineers are now working to fix the problem, and we expect to have the service back to normal as soon as possible.

BT marked the issue as resolved around 11am, but the changes they made took a while to propagate across the net.

If you’re in doubt about your sends to BTInternet.com addresses on the 12th then check your soft bounce reports for ‘DNS failure’ reason codes. If necessary you can save these as an address book and resend your campaign to them.