553 sorry, that domain isn't allowed to be relayed thru this MTA
Posted by Barry Tarbet on 21 July 2009 01:32 PM

Please try the following:



delete all emails in outbox

delete the email from your email program (ie outlook, select tools, account settings, account)



lets add email address back


select "new" to re-create the email address just deleted .. ie


if using outlook 2007 please select "manual configure server settings"


select internet email (pop3)





your name - Webmaster

email address -  

account type- pop3

incomming -

outgoing -


user name -

password - xxxxxxxxxx



select "more settings" or for those using older versions of outlook, select "advance settings" or select "server" tab depending on which outlook your using.

make sure "my outgoing server( SMTP ) requires authentication is enabled . click ok



if the option is available - click "test email account"

if successful click ok or finish



now lets test then email -





if you continue to receive the 553 sorry that domain isnt allowed to be relayed thru this MTA -



contact OccHosting Support





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