SMTP Topic: SMTP
I am hosting my own email server. It can receive mail on port 25, but unfortunately my ISP blocks sending on that port. so I chose your "SMTP Outbound Relay" service, which I use on port 26. it works, but then I can no longer send mail. How can I resolve this issue? Should I change my service from Dynu or is it a configuration issue?
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If its like my ISP, they block port 25 is both directions, except to their SMTP server.On my mail server I have a "Smart Host / Outbound Mail Gateway" configured that point to the ISP's mail server and it relays all my email. It does require a login, but is transparent to your domain email addresses.Basically you have to SMTP relay in (Dynu) and SMTP relay out (Your ISP SMTP server).
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fredricmichaels Joined: 2/19/2020 
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SMTP Thursday, February 20, 2020 11:00 PM
I am hosting my own email server. It can receive mail on port 25, but unfortunately my ISP blocks sending on that port. so I chose your "SMTP Outbound Relay" service, which I use on port 26. it works, but then I can no longer send mail. How can I resolve this issue? Should I change my service from Dynu or is it a configuration issue?
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grahamxpromz Joined: 4/13/2015 
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SMTP Thursday, April 9, 2020 10:06 PM
If its like my ISP, they block port 25 is both directions, except to their SMTP server.On my mail server I have a "Smart Host / Outbound Mail Gateway" configured that point to the ISP's mail server and it relays all my email. It does require a login, but is transparent to your domain email addresses.Basically you have to SMTP relay in (Dynu) and SMTP relay out (Your ISP SMTP server).
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mahmoudlotfy2 Joined: 8/26/2019 
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SMTP Wednesday, July 29, 2020 3:26 AM
I do not know how to receive any outside inclination.what should I do ?
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