It looks as though TT Business support it. See Message 7.

I think when the OP said they have their own domains they also meant mail hosting.

Plusnet don't block external host usage with SSL.

In reply to a post by Michael_Chare:

Plusent have a trial SSL system. Some customers are able to send using it. The trial has been running for some time. You can find details on the Plusnet forum.

Whilst that may be so, I would never recommend something which is in beta, unsupported, and could be withdrawn without notice. The email SSL/TLS issue is a pretty damning example of how slow Plusnet can be at implementing something that they themselves believe should be implemented.

In reply to a post by BeachWalker:

In reply to a post by Oliver341:

I would second the suggestions not to use ISP email.

Some providers that don't support SSL email are TalkTalk, Plusnet and EE.

Sky, BT and Zen do support it.

Thanks Oliver, I am an apple user so it looks like my choice of new broadband provider is limited to the above three?

See my reply re Plusnet to another poster a couple of minutes ago.

Am I right you also have third-party mail hosting?

You can also look at Zen, IDNet, Uno, Aquiss, Claranet and many others.

Surely you aren't using TalkTalk SMTP server?

In reply to a post by BeachWalker:

Thanks Oliver, I am an apple user so it looks like my choice of new broadband provider is limited to the above three?

I'm sure there are other providers who have SSL/TLS on their email servers, I just listed the ones I know of.

In reply to a post by Oliver341:

In reply to a post by BeachWalker:

Thanks Oliver, I am an apple user so it looks like my choice of new broadband provider is limited to the above three?

I'm sure there are other providers who have SSL/TLS on their email servers, I just listed the ones I know of.

Thanks for suggestions my domains have thier own email servers, download is SSL, upload blocked by TT I'm getting around it by use gmail upload. Best find new reliable broadband provider, its not so easy to find out what providers allow third party outgoing mail with SSL.
TT Broadband is slow in the evening on ADSL2 it might say 8mbs on test but you can't watch youtube and 8pm.

In reply to a post by BeachWalker:

Thanks for suggestions my domains have thier own email servers, download is SSL, upload blocked by TT I'm getting around it by use gmail upload.

SMTP with SSL can't be blocked on TalkTalk if you are connecting to Gmail SMTP with SSL.

I've used TalkTalk before and they didn't block any ports, not even port 25 outgoing.

In reply to a post by Oliver341:

In reply to a post by BeachWalker:

Thanks for suggestions my domains have thier own email servers, download is SSL, upload blocked by TT I'm getting around it by use gmail upload.

SMTP with SSL can't be blocked on TalkTalk if you are connecting to Gmail SMTP with SSL.

I've used TalkTalk before and they didn't block any ports, not even port 25 outgoing.

Yes Gmail SMTP with SSL works with Talk Talk

In reply to a post by BeachWalker:

Yes Gmail SMTP with SSL works with Talk Talk

Do pay for email hosting for your domains? If so, have you discussed the issue with them?

In reply to a post by Oliver341:

In reply to a post by BeachWalker:

Yes Gmail SMTP with SSL works with Talk Talk

Do pay for email hosting for your domains? If so, have you discussed the issue with them?

Yes spoke to them today, all in price with hosting, I used automated setup but outgoing server SMTP would not work on port 465 as they suggested.
Thinking of going to SKY?