asked on

External recipient is not receiving e-mails from our domain

Hi there,
I hope that any of you experts can help me.
One of my users is having a perplex issue. She is trying to send e-mails from our corporate account to an outside recipient (another corporate account). The recipient says that he is not receiving our coworker's e-mails.
Our coworker is not receiving any bounce backs or any errors from our mail server. It appears that her e-mails disappeared on CIBER-space. My coworker is able to send e-mails out of our domain to other domains without problems.

The external recipient said that they are not blocking our domain or our coworker's e-mail address.

We are using Exchange 2007 with Outlook 2007.

At this point, I don't know what to do. By the way, I sent the external recipient a test to his Verizon account and he got my test.

Does anybody have any ideas on what should I be doing?

Thanks

ASKER CERTIFIED SOLUTION

dianthonym

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Colombia1

ASKER

I sent him an e-mail from my corporate account also and it appears that de did not get it either. Unfortunately, I did not get any bounce backs. So, I don't know what the problem could be on my end. By the way, we are not in any external blacklists, I already checked that.

Colombia1

ASKER

Thanks for your post and I'm sorry it took me longer to give you the points. The caused of the problem was that a third party company was blocking a range of IP addresses from our ISP provider, unfortunately our range of IP addresses was in the same area as the ones blocked. our mail server was not blocked, but we were affected by the whole blocking thing. I spoke to our ISP provider and they were able to fix their problem.
Thanks for your help.