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When I'm sending mail from say, outlook, outlook connects to my MX server @ port 25. But what port is the transiting mail destined to? Is it still 25?
Ben Marconi
Posted 2016-04-12T07:17:36.430
Reputation: 11
What Port/s Does A Transiting Email use?
Answers
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There is no transit email on protocol level. SMTP (the email protocol) is extremely primitive actually - it is ancient.
All sent emails are forwarded using the same protocol (SMTP) and thus the same port number. A transit it speficied by the server basically then sending the email further.
TomTom
Posted 2016-04-12T07:17:36.430
Reputation: 1 213
what is your actual problem behind this question? What will be your benefit knowing the port number? – Máté Juhász – 2016-04-12T07:22:55.823
Can't I just be curious? – Ben Marconi – 2016-04-12T07:23:57.760
yes, you can. But giving a bit more background would increase the chance that people will find your question interesting and also you may get more useful answer. – Máté Juhász – 2016-04-12T07:24:59.320
I mean, that's really all there is to it I was just curious, but judging from your response, it must depend on the context. What context shall I provide? – Ben Marconi – 2016-04-12T07:30:29.060