Open port 25 inbound on my account?

I have an external e-mail account that can replicate its e-mail by forwarding to another account on port 25. I have historically run a machine in my house that keeps a replica of my e-mail as a backup. I'm wondering if port 25 could be opened up for me inbound?

I know that port 25 outbound can be used for spam. No need to open that for me; in fact I'd vaguely prefer it if it were blocked so that I definitely can't be a source of spam if one of my computers is hacked. (I can block it at my own firewall, though, so no need for xfinity's block.)

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Again

Expert

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31K Messages

8 months ago

@aseering it's very doubtful you'll get port 25 incoming unblocked. You can try calling Customer Security Assurance but don't be surprised if they say no.

Customer Security Assurance
Business Hours: 8:00am - 12:00am EST, 7 days a week
Contact: 1-888-565-4329

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aseering

3 Messages

So, I’ve tried calling CSA three times already. The first time, they seemed to think that it would be possible to un-block the port. But they had to bring in someone more senior, and in the process of doing so, I got disconnected. The second and third times, I reached people who were unfamiliar with port 25; they just had instructions to open any ordinary port using the Xfinity app and didn’t know that port 25 was a special case (and definitely not what could or couldn’t be done about it).

8 months ago

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XfinityChelseaB

Official Employee

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1.2K Messages

Hello @aseering, Thanks so much for taking a moment out of your day to leave a post on our community forum. At this time Comcast no longer allows our residential customers to access port 25, I do apologize. If you want to allow traffic to port 25 you would need to be a business customer to do so. Please check out these links for more information:

https://www.xfinity.com/support/articles/email-port-25-no-longer-supported
https://www.xfinity.com/support/articles/list-of-blocked-ports

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8 months ago

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A

aseering

3 Messages

Thank you for the update. However, those pages have been around for a while, and others on this forum have been successful recently at getting port 25 opened for this purpose. For example:

https://forums.xfinity.com/conversations/email/port-25-unblock-art-of-the-business-as-usual-runaround-and-is-there-anybody-out-there/636861fc92a15b227c29043f

https://forums.xfinity.com/conversations/email/reprise-unblock-port-25/65dba302a675d54e94bce604

8 months ago

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aseering

Open port 25 inbound on my account?

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