Can't send e mails using ntlworld server

Genmac,

The info from gumsie for Connection Doctor would seem to confirm the SMTP should be presented on Port 25 with no Authentication (None) -- that is what No Login Required tells us -- only Port 25 will allow use without separate Authentication. However, for this to work, you must be connected at your home venue where NTL serves you -- use of such a SMTP requires authentication based upon the IP address on the modem they provide you.

More info, please.

Ernie

Yes!!!

BT could only now be blocking the use of Port 25 to third party SMTP (something most ISP now do), which this one is, and since the one from NTL cannot be separately Authenticated, it cannot be presented on any other Port.

Major info for me to now realize that NTL is not your ISP! Keep in mind that I have not information as to whether BT will let you use this From address, but some ISPs will.

Ernie

Message was edited by: Ernie Stamper

Without regard to anyone else specifically, when it comes to sending and using SMTPs, the relationship with each provider matters immensely. With every ISP trying to hold down SPAM, the way most of them have decided to do it, is by how they decide who they can trust to send a message over their connection -- they even worry about liability they might have if too open, and not alert to who is using their SMTP. The same goes with WiFi spots. So, it is with cable providers, who traditionally have authenticated (decided who to trust) their SMTP only by either reference to the Incoming server or the IP of the modem, that those customers with portable computers must find other ways to send and communicate by email when remote from home. This is the great attraction of Gmail, MobileMe, Yahoo, etc. Today you simply are not going to be able to use a non-authenticated SMTP when not directly connected to that provider, because almost everybody is blocking Port 25, and the other ports, such as 587 and 465, require the SMTP to be separately authenticated.

Ernie

No, you can continue to receive emails so long as NTL allows you. But using the NTL SMTP is not up to them, but to the policies of your new ISP, or anyone providing connection at other venues, such WifI. It is only the sending that suffers from the measure meant curtail SPAM.

It is up to BT whether you can send with the NTL address with the BT SMTP.

Ernie

Message was edited by: Ernie Stamper

What you could do just to double check is take your MacBook, (as it's portable), to another ISP and try there.

The point you may be missing is that BT may have recently changed their policy toward use of third party SMTP, but this may not have impacted you until you had to set the preferences up again. That would not be too unusual.

Ernie

I don't have any portables so it's not a hypothesis I can check myself.