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exchange error

By kurtasha ·
Does anyone know what all this stuff means i can send an email from my account to this recepient but one of my users cant?? when they try to this is what they get.

"There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<mailserv1.ABC123.com #5.5.0 smtp;550 Requested action not taken: NUL characters are not allowed.>"

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by Dave the Computer Guy In reply to exchange error

Hey there, well in looking at the return message you are receiving the first thing I would look at is the users email address. Are there any characters (including spaces) in it other then letters or numbers? If so this might be causing a problem with the mail server you sending the email to.

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by kurtasha In reply to

Poster rated this answer.

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by kurtasha In reply to exchange error

The server on the recepints side had the problem security set to high it blocked any message containing an attachment, i sent just a text email and they got it fine.

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by kurtasha In reply to exchange error

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