messages being blocked

mazzachuck

New Email
I have someone with whom I e-mail on a daily basis. Today (10/10/2014) he called me to say that e-mails he's sent to me have been returned as undeliverable. I am receiving e-mails from other parties as usual, but not his. In fact, he's sent his e-mails to my wife's Ipad and I've forwarded them from her Ipad to my PC so I can get his e-mails, but he still can't send them to me directly.

Is the problem at his end or my end?

What can be done to rectify this?

Thank you.
 
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