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sbrook
Premium,Mod
join:2001-12-14
Ottawa
kudos:13
Reviews:
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reply to sbrook

Re: [E-mail] Comcast tells user to change from port 25 to 465 F

Interesting ... if you read some folks go so far as to suggest the use of port 465 is violating the RFCs to use 465.

On my email services, except for GMail (which is an SSL connection on 465 as opposed to others which are either naked or starttls) are port 587.

That said, 587 is working for him, so that should do unless it fails, when he'll probably be back! On 465 he got timeouts.

Doesn't Comcast use multihomed SMTP servers? With different servers serving different geographies? I found the same letter he received from members in other geographies with 587 as the port to change to.



graysonf
Premium,MVM
join:1999-07-16
Fort Lauderdale, FL
kudos:2

I had been using port 587 since joining Comcast last May. I only switched to port 465 after reading your post to see of it worked.



NetFixer
Freedom is NOT Free
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join:2004-06-24
The Boro
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reply to sbrook

said by sbrook:

That said, 587 is working for him, so that should do unless it fails, when he'll probably be back! On 465 he got timeouts.

The person who had that problem was probably not using SSL for the connection. Using port 465 without using SSL will not work. Comcast has supported naked port 25 and 587, and port 587 using TLS, and port 465 using SSL for many years. This is nothing new; what is new is that Comcast is phasing in a universal port 25 port block for its residential customers. Using port 465 with SSL has always worked, and it continues to work; any problem would be with the customer's setup (perhaps with a local firewall setting, if the email client was actually setup properly).
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