Bill Ridgeway wrote:
> BT prevents users from sending email through a third party server.
No they do not. They do not block outgoing emails to any third party
servers.
> you want to send email from (E-Mail Removed) and not (E-Mail Removed)
> you wouldn't be able to do so.
Yes you can. You need authorisation to do so, they do not relay for
unknown 3rd party domains by default.
> The stated reason is because of security.
Yes, they will not relay mail through their SMTP server for domains
they don't host or their customers don't own. That's security.
> However, it's not surprising that security issues evaporate if you pay BT
> more.
Not true. If you are their customer, call 08456007020 and ask the
technical helpdesk to have your domain added to their system for "mail
relay". This costs nothing apart from the telephone call, and if you
are worried about the cost of that do a search to find out how to get
through to the helpdesk for free.
> Is there a source of information for providers that block or allow such
> email?
If you want to send email via 3rd party email servers you can do that
without needing to contact the helpdesk at all. If you want to use BTs
outgoing mail server for relaying, call the helpdesk be prepared to be
able to prove you own the domain - normally if the whois info - company
name, registrant or address matches the details they have for the BB
holder the domain can be added straight away. If the details don't
match you will be asked to fax a copy of your domain
invoice/registration certificate or you may have to change the whois
info to match. Large business ISPs need to take as many steps as
possible to cut down on spam passing through their systems - not
relaying for any old address is one measure which BT business broadband
have taken to secure their outgoing SMTP servers.
Kind Regards
William MacLeod