Mail Delivery Error

Hi, When sending an email to a Yahoo account, I get this:

2015-03-07 07:49:00 EST      Recipient Disposition: [250 Queue (Validating Sender: 4.3.2 Internal error reading data); Mode: normal; Queued: yes; Frontend TLS: yes]
2015-03-07 07:49:01 EST      Detail: first attempt failure: 451 validating sender: 4.3.2 internal error reading data
Computer GuyAsked:
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JohnBusiness Consultant (Owner)Commented:
If that is (as I think) the same message one gets in Outlook, it means mail is NOT leaving the server, that is, it is not going out and bouncing back.

Reasons for this:  (1) malformed mail address and (2) virus noted in the email. That is what I see.

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JohnBusiness Consultant (Owner)Commented:
@audiotech520  - Thanks and I was happy to help.
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