Sorry to bring this here but I cannot see what my problem is!! email to 
cogeco.ca is being rejected with the folowing message

<recipient address hidden> host MX.cogeco.ca[216.221.81.26] said: 451 Postmaster
     Code 5 - #4.1.8 Domain of sender address<j...@klam.ca>   does not resolve.
     Le domaine<j...@klam.ca>, utilis?? pour envoyer le courriel, ne se r??sout
     pas. (in reply to MAIL FROM command)


However every test that I perform comes back normal. I have also used offsite 
services such as MXtools, dnsstuff; neither of them show any problems.

What am I missing?

John A

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