I am unable to send email from my tpg account, the following error message is shown in outlook. Receiving email is fine.
Task 'firstname.lastname@example.org - Sending' reported error (0x800CCC6F) : 'Your outgoing (SMTP) email server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: 554 rpt-cro-asav6.external.tpg.com.au'