SMTP error 530 authentication required for my company’s domain to receive emails
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, [...]

Answer Question   |  September 22, 2011  12:30 PM
Exchange 2007, Network administration, SMTP, SMTP 530, SMTP AUTH, SMTP error