[AusNOG] Issues receiving from TPG Mail servers.

[Scott Howard]

On Mon, Jul 23, 2018 at 9:45 PM, Bradley Silverman <
bsilverman at staff.ventraip.com> wrote:

> It isn't possible to set TLSv1.0 for un-authenticated email, and TLSv1.1
> for authenticated, though that would fix the problem.
>

Yes, it is.

The problem is you're trying to use port 25 for both delivery
("unauthenticated") and submission ("authenticated")

Move your "authenticated" email over to port 587 where it belongs.  Not
only will this allow you to solve your problems, but will also solve any
future potential issues with people blocking port 25 (eg, home ISPs)

  Scott
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