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[GH-ISSUE #41] Troubles understanding Message delivery flows #31

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opened 2026-05-05 15:00:32 -06:00 by gitea-mirror · 5 comments
gitea-mirror commented 2026-05-05 15:00:32 -06:00
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Originally created by @enekux on GitHub (May 6, 2016).
Original GitHub issue: https://github.com/darold/sendmailanalyzer/issues/41

Hi,

I have troubles understanding the Message delivery flows.

Our Postfix server is used as a "Gateway/AntiSpam-AntiVirus Filter" mail server for multiple domains for Incoming and Outgoing mail flows.

But I don't quite understand the statistics shown under Messaging/Message delivery flows:

External -> Internal
External -> External
Internal -> Internal
Internal -> External

I have been playing with next directives to make some sense, but still I don't understand the results:

LOCAL_DOMAIN domain.com, domain2.com
MAIL_HUB 127.0.0.1,::1,mail.domain.com, mail.domain2.com
MAIL_GW

Would this be ok?

What is the interpretation for:

External -> External
Internal -> Internal

Thank you and regards

Originally created by @enekux on GitHub (May 6, 2016). Original GitHub issue: https://github.com/darold/sendmailanalyzer/issues/41 Hi, I have troubles understanding the Message delivery flows. Our Postfix server is used as a "Gateway/AntiSpam-AntiVirus Filter" mail server for multiple domains for Incoming and Outgoing mail flows. But I don't quite understand the statistics shown under Messaging/Message delivery flows: External -> Internal External -> External Internal -> Internal Internal -> External I have been playing with next directives to make some sense, but still I don't understand the results: LOCAL_DOMAIN domain.com, domain2.com MAIL_HUB 127.0.0.1,::1,mail.domain.com, mail.domain2.com MAIL_GW Would this be ok? What is the interpretation for: External -> External Internal -> Internal Thank you and regards
gitea-mirror commented 2026-05-05 15:00:37 -06:00
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@darold commented on GitHub (May 15, 2016):

Hi,

Sorry for the response delay. Here you only need to set the list of your internal domain in the LOCAL_DOMAIN configuration directive. MAIL_HUB and MAIL_GW must be empty.

Regards,

<!-- gh-comment-id:219276156 --> @darold commented on GitHub (May 15, 2016): Hi, Sorry for the response delay. Here you only need to set the list of your internal domain in the LOCAL_DOMAIN configuration directive. MAIL_HUB and MAIL_GW must be empty. Regards,
gitea-mirror commented 2026-05-05 15:00:40 -06:00
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@enekux commented on GitHub (May 17, 2016):

Hi,

ok I will give it a try, do some tests and let you know.

Meantime, could you explain which emails fall in the Mail Flows:

External -> External
Internal -> Internal

Thanks

<!-- gh-comment-id:219633534 --> @enekux commented on GitHub (May 17, 2016): Hi, ok I will give it a try, do some tests and let you know. Meantime, could you explain which emails fall in the Mail Flows: External -> External Internal -> Internal Thanks
gitea-mirror commented 2026-05-05 15:00:43 -06:00
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@darold commented on GitHub (May 20, 2016):

You might not have External -> External flow, this can result of backscatting or bounced messages. Internal -> Internal is when your MTA is used from and to legit users. To simplify you can see External as Internet and Internal as your private network.

<!-- gh-comment-id:220497856 --> @darold commented on GitHub (May 20, 2016): You might not have External -> External flow, this can result of backscatting or bounced messages. Internal -> Internal is when your MTA is used from and to legit users. To simplify you can see External as Internet and Internal as your private network.
gitea-mirror commented 2026-05-05 15:00:45 -06:00
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@romale commented on GitHub (Nov 17, 2016):

I've also configured LOCAL_DOMAIN but External->Internal is 0 0.00 0.00%.
Thanks

p.s. i've installed sendmailanalyzer master and commit dd038624d3

<!-- gh-comment-id:261197582 --> @romale commented on GitHub (Nov 17, 2016): I've also configured LOCAL_DOMAIN but External->Internal is 0 0.00 0.00%. Thanks p.s. i've installed sendmailanalyzer master and commit dd038624d391b4625da52fcf3cc962d049a1e79e
gitea-mirror commented 2026-05-05 15:00:47 -06:00
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@darold commented on GitHub (Nov 17, 2016):

Please send me a sample of your log to my private address gilles AT darold DOT net I will try to find the right settings or fix the issue.

<!-- gh-comment-id:261287541 --> @darold commented on GitHub (Nov 17, 2016): Please send me a sample of your log to my private address gilles AT darold DOT net I will try to find the right settings or fix the issue.
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