On 29 Jul 2019, at 0:56, Viktor Dukhovni wrote:
> On Sun, Jul 28, 2019 at 08:14:38PM +0000, Bjoern A. Zeeb wrote:
>
>> Now sometimes the same email comes back to MX-E via an *alias* (no From:
>> changes) on MX-3. MX-E will receive the looped back email from MX-3
>>
Dear all,
I am confronted with a problem in a mail-cluster of internal, external,
and a 3rd party postfix setup.
For simplicity I’ll reduce the setup to:
MX-I (internal mail relay, user authentication, .., also LMTP delivery)
MX-E (external mail relay, incoming/outgoing)
MX-3 (3rd party mail
