Knowledgebase: Email Errors
550 The recipient cannot be verified
Posted by WestNIC Support on 25 August 2006 04:49 PM

Eventually, you may recieve following error: 550-"The recipient cannot be verified. Please check all recipients of this 550 message to verify they are valid." (in reply to RCPT TO command).

All our servers built with "Verify the existance of email senders" feature. verify = sender checks whether a senders email address can be replied to and email sent from REAL email address, if not the verify fails. If user is trying to send email from user@domain.com but actual mail server is mail.someotherdomain.com, verify will fail. 

If you need further assistance, please submit support ticket: https://support.westnic.net/  with entire mail headers.

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Help Desk Software by Kayako Resolve
ERROR: This domain name does not match domain registered in the license key file (cualesproductions.com), allowed domains: support.westnic.net, please change the product path to match the domain under Admin CP > Settings > General Settings
This product will not work properly unless untill that value is changed.

For more information please contact Kayako support at https://my.kayako.com