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user_c8va59
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Tuesday, July 2nd, 2024 2:52 PM

Unblocking outbound port 25 for use of smtp server

Hello,

I'm hoping that someone can help me in requesting that outbound requests on port 25 be unblocked for my account.  I tried calling in, but the representative didn't seem to understand the request and ended up transferring me to Google's support line without even letting me know.

Any help would be greatly appreciated.

Thanks!

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5 months ago

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EG

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5 months ago

Concern moved here to the E-mail help section for assistance.

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XfinityEricB

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1.7K Messages

5 months ago

@user_c8va59 Email is used for important communications and Comcast wants to ensure that these communications are as secure and as private as possible. As such, Comcast does not support port 25 for the transmission of email by our residential Internet customers. Much of the current use of port 25 is by computers that have been infected by malware and are sending spam without the knowledge of the users of those computers. There isn't a way to unblock it for a specific account, and you would need to use another more secure port like port 587. 

 

(edited)

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user_c8va59

3 Messages

There aren't any other ports that mail can be delivered on aside from port 25. Port 587 is used for clients that will use that smtp service as a relay, but I need to be able to deliver emails directly.  I understand that port 25 is used by malware to send spam, but with other ports not being suitable replacements for port 25, I was hoping to have this unblocked.  I've seen other customer have this port unblocked, can you double check that this port can't be unblocked for my account? 

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5 months ago

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user_c8va59

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I see that in post https://forums.xfinity.com/conversations/email/port-25-unblock-art-of-the-business-as-usual-runaround-and-is-there-anybody-out-there/636861fc92a15b227c29043f Xfinity was able to unblock this port.  I am prepared to take responsibility for any traffic over port 25, and understand the risks associated with it.

(edited)

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5 months ago

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Again

Expert

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@user_c8va59 

Honestly, I haven't seen them unblocking port 25 in the last year, so it's pretty doubtful that it will happen.

(edited)

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

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5 months ago

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