Google silently rewrite the From: line if it's not something that's authorised. I wonder if Telecom will take this approach, or if they'll reject the email altogether. I'm not sure what method would make less help-desk noise or reputation impact. Either way, it's good that they're telling their customers before making the change, and giving sufficient notice for them to change suppliers if they so choose. On 15/07/14 16:42, Glen Eustace wrote:
We have had enquiries from several of our customers in the last couple of days regarding an email they have received from Telecom. It relates to a change in Telecom's email service that I find interesting.
These customers use Telecom as their ISP, and have a mailbox on Telecom's Yahoo/Xtra service but they use their own domain when sending messages, we are their MX host and we redirect their mail to their xtra.co.nz address. Apparently from the end of September Telecom are going to prevent their customers from using their SMTP servers unless the From address on outbound email is an Xtra one (or I presume a domain that they manage).
Up until now, we have always instructed customers to use the SMTP servers belonging to their ISP (i.e. the ISP providing their Internet service), that advice now goes out the window and we are going to have to work with Telecom's customers to help them setup authenticated SMTP to our servers.
I am not impressed that Telecom are effectively going to break their email service (for their own customers) and are relying on others (e.g. us) to fix their customers email for them, when in my opinion, the customers email isn't currently broken.
Glen.
-- Dan Wallis - Systems Administrator, http://e2digital.co.nz/