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Home > Success Center > Web Help Desk (WHD) > Error message displays in the outgoing Web Help Desk email

Error message displays in the outgoing Web Help Desk email

Updated July 28, 2016


The following error message displays in an outgoing Web Help Desk email: 

Invalid address:com.sun.mail.smtp.SMTPAddressfailed Exception:550 5.7.1 unable to relay.


All WHD versions


Web Help Desk cannot forward email to an address outside the domain using the value configured in Setup > E-Mail > Outgoing Mail Accounts.


  1. Log in to Web Help Desk as an administrator.
  2. Click Setup > Email > Outgoing Mail Accounts.
  3. Click the outgoing mail account.
  4. Verify that:
    • Web Help Desk is authenticating correctly to the SMTP server.
    • Web Help Desk emails can be transmitted outside of your domain using the settings on your SMTP server.

For more information, see Invalid address:com.sun.mail.smtp.SMTPAddressfailed Exception:550 5.7.1 unable to relay posted on the SolarWinds THWACK community website.  




Last modified
14:30, 31 Aug 2017