I have been unable to get outbound e-mail working with my new installation of Plesk 7 (Windows 2003). Currently all outgoing mail is stuck in the SMTP Outbound Queue of MailEnable (this is visible by opening the MailEnable Administration console) with the following error message: This same error occurs on all outbound mail regardless of the destination mailbox (i have tried several destinations @msn, @yahoo, etc.) Inbound mail is working fine -- I have been able to successfully send mail to accounts setup in Plesk and view the incoming messages in webmail with no issues. I currently have the Plesk firewall turned on. Thanks, any help is greatly appreciated.