Where is the best place to ask about mail receiver topics? Here, or another forum? Specifically I am after details on what appear to be a pair of port numbers (25 : 25). It’s not clear to me why there are two ports here, not just one for SMTP. I cant find documentation in github.

Are you talking about Straightforward direct-delivery incoming mail ? The first 25 is the external ip, the second is the ip inside the container. What problem are you trying to solve?

[imagen] pfaffman: The first 25 is the external ip, the second is the ip inside the container. What problem are you trying to solve? Thanks. Where is that documented? Problem - trying to run normal enterprise class Postfix server for mail on same server as Discourse container. I need to hav…

It’s a docker fundamental. Most any “how to use docker” guide covers it, I’d think. [imagen] Andro: Where is the best place to ask about mail receiver topics? Here, or another forum? I gave an answer to this question over at Postfix and mail receiver - #5 by pfaffman .

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pfaffman (Jay Pfaffman) 9 Enero, 2021 14:04 4

Es un concepto fundamental de Docker. Creo que la mayoría de las guías de “cómo usar Docker” lo cubren.

Ya respondí a esta pregunta en Postfix y recepción de correo - #5 por pfaffman.

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Postfix and mail receiver Self-hosting mail-receiver	4	1171	8 Enero 2021
Getting incoming mail to work when port forwarding from a router Self-hosting	2	578	19 Noviembre 2022
Mail-receiver relay access denied Self-hosting mail-receiver	21	1867	26 Enero 2025
Incoming e-mail not received Self-hosting	20	2213	11 Febrero 2022
Mail-receiver won’t deliver mail to Discourse Self-hosting mail-receiver	16	399	26 Enero 2023

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