cuddylier Posted June 16, 2013 Share Posted June 16, 2013 Hi I changed email services today to namecheap's Open-Xchange service. I changed all the email and SMTP settings on whmcs to namecheap's details and all went fine. When whmcs tries to send any emails that are admin notifications or to do with any support department I get this error in the admin log: SMTP server error: 5.7.1 : Sender address rejected: not owned by user notify@spartanhost.net All my email templates have the sender set to notify@spartanhost.net Anyone any ideas why this may be happening? I've tried contacting namecheap's support and triple checking everything on WHMCS but I cannot see why it would happen. 0 Quote Link to comment Share on other sites More sharing options...
WHMCS Support Manager WHMCS John Posted June 18, 2013 WHMCS Support Manager Share Posted June 18, 2013 Hi, For admin notification emails, please ensure your Setup > General Settings > Mail tab > System Emails From Email setting is set correctly. It sounds like you would need to use notify@spartanhost.net. 0 Quote Link to comment Share on other sites More sharing options...
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