Here is the relevant parts of the email. NB: The customer uses their xtra mailbox and POPs from it. But they have their From: set to the address below. OPTION 1: Keep using admin(a)customers-domain.co.nz. Your easiest option is send email directly through your email provider's server. You'll need their 'outgoing mail' settings for POP email to make the necessary update. Please contact them directly to find out what updates to make to you OPTION 2: Use your FREE xtra.co.nz email address. All Telecom broadband customers have a FREE xtra.co.nz email address. You can sign up or activate yours now at telecom.co.nz/email Please update your settings before 30 September. It’s really important to make these changes as soon as possible. While you can still update your settings once we’ve made our changes, after 30 September you won’t be able to send any email until you update your settings.