Business Email
SmarterMail Business Email, and fixing common email errors.
Business Email articles
550 Administrative Prohibition
The “550 Administrative Prohibition” error usually means that the receiving mail server is rejecting the message due to a policy restriction. Given that you are using SmarterMail with a SpamExperts gateway , here are some potential causes and solutions: Possible Causes & Solutions SpamExperts Filtering Issue If your outgoing mail is being routed through SpamExperts […]
Cannot send email using Outlook (Server Error: ‘550’)
If you are receiving an error similar to this when sending email using Outlook: “The message could not be sent because one of the recipients was rejected by the server. Server Response: ‘550 not local host, not a gateway’, Port: 25, Secure (SSL): No, Server Error: 550, Error Number: 0x800CCC79 Open your Outlook settings ( […]