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WayToDoor
WayToDoor
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The question was kinda resolved in acejavelin's answer, but I just wanted to clarify that, sometimes, the ISP blocks connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel.

The other major ISPISPs probably does it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.
You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

The question was kinda resolved in acejavelin's answer, but I just wanted to clarify that, sometimes, the ISP blocks connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel.

The other major ISP probably does it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.
You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

The question was kinda resolved in acejavelin's answer, but I just wanted to clarify that, sometimes, the ISP blocks connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel.

The other major ISPs probably does it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.
You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

Improved link formatting.
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edit approved Nov 18, 2018 at 21:41
zx485
edit approved Nov 18, 2018 at 21:41
zx485
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The question was kinda resolved in acejavelin answeracejavelin's answer, but I just wanted to clarify that, sometimes, the ISP blockblocks connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel. 

The other major ISP probably dodoes it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.

You
You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

The question was kinda resolved in acejavelin answer, but just wanted to clarify that, sometimes, ISP block connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel. The other major ISP probably do it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.

You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

The question was kinda resolved in acejavelin's answer, but I just wanted to clarify that, sometimes, the ISP blocks connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel. 

The other major ISP probably does it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.
You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.

Source Link
WayToDoor
WayToDoor
  • 121
  • 5

The question was kinda resolved in acejavelin answer, but just wanted to clarify that, sometimes, ISP block connections to port 25 outbound, to limit spam from infected residential computers. If you are in France, as the host suggest, I know that free (an ISP) does that by default, but you can disable that on your customer panel. The other major ISP probably do it too, but I don't currently have the knowledge.

You should try to connect to some random mail server to see if it works.

You can also use telnet and http://portquiz.net/ to see blocked outbound ports, if any.