topic Re: SMTP port 25 vs. 587 in Archive

SMTP port 25 vs. 587

thgjerde — Mon, 29 Oct 2012 10:49:32 GMT

The Internet standard track for email submission is to use port 587.

Many Internet service providers block port 25.

Why does not smtp.btconnect.com get its act together and turn on port 587 for authenticated email submissions?

Re: SMTP port 25 vs. 587

Plumly — Mon, 29 Oct 2012 12:13:07 GMT

Hi Thgherde,

BT is in the process of changing to Office365 Product, This changes the port from 25 to 587, obviously we don't know the ins and outs of their platform so there may have been other reasons why they aren't allowing port 587 traffic VIA Smtp.btconnect.com,

Re: SMTP port 25 vs. 587

thgjerde — Mon, 29 Oct 2012 23:31:05 GMT

They are running a Mirapoint Messaging Server appliance with very recent software. The only reason they are not supporting port 587 is because they block it by firewall or disable it in the administration interface. It should be a 5 minute fix.

Re: SMTP port 25 vs. 587

Plumly — Tue, 30 Oct 2012 14:39:29 GMT

either way there in the process of changing it,

maby have a chat with the ISP whos blocking port 25 and ask them to unblock it,

Re: SMTP port 25 vs. 587

Stephenc — Sat, 03 Nov 2012 14:44:06 GMT

Hi there,

To be honest a good few ISP's don't block port 25. But the ones that do generally will allow you to send through their outgoing server instead. Contact them direct and they should allow this and provide the settings.

Thanks,

Steve