SMTP error 530 authentication required for my company’s domain to receive emails

5 pts.
Tags:
Exchange 2007
Network administration
SMTP
SMTP 530
SMTP AUTH
SMTP error
I'm a network admin for a small company, and recently one of my users purchased an account with an email marketing company.  She is going to use their website to send out a newsletter.  When she tried to email the newsletter within our domain, no one receives them.  However, when she emails them to @yahoo, @gmail, @hotmail, etc. it works.  She received an email about the problem: <mycomany's mail server> rejected your message at the bottom of the page: [my email] [mycomany's mail server]#<[mailserver] #5.0.0 smtp; 530 SMTP authentication required> #SMTP#

Software/Hardware used:
MS Exchange 2007
ASKED: October 15, 2010  12:30 PM
UPDATED: September 22, 2011  5:53 AM

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Hi,
You just need to tell your customer to add your domain as a trusted domain in her mail server and you too add her domain as a trusted domain in your mail server.Hope this solves your problem.

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