Bowie Bailey writes:
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We have been noticing that some of our internally generated emails are being rejected with this error:  '534 Message header size, or recipient list, exceeds policy limit.'  I cannot find anything in the message headers that would cause a problem. The entire header is only 418 characters and only two recipients. What other conditions can cause this error? Can it be caused by anything within the body?
Yes, if a single line of text within the body exceeds 5000 characters.
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