Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations strongm on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Unable to send emails to btinternet.com and yahoo.com!

Status
Not open for further replies.

sebjenkins

Technical User
Jan 8, 2003
164
GB
For some reason a couple of weeks ago, we were suddenly unable to send emails to any recipients @btinternet.com or @yahoo.com.

Whenever we try to, we get a message saying the message is delayed then finally we get an undeliverable message with the following text:

xxxx@btinternet.com on 20/01/2005 23:05
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<mail.hhc.co.uk #4.4.7>

Would it be something to do with the recipients server performing a reverse dns lookup and its failing or am I way off the mark ?!!

We are using Exchange Server 2003

We are able to email everywhere else and I dont think that its coincidence that both these domains are owned by British Telecom!

Any advise suggestions, would be greatly appreciated !
 
Try clearing your dns forward lookup cache, if that doesn't work, where are you forwarding your unresolved DNS requests to ? try changing it.

 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top