Did you copy the SMTP settings? They are sometimes overlooked.

Under Account Settings, they are the last account listed in the narrow left hand pane, labelled "Outgoing Server (SMTP)".

Hi, Yes I did copy the outgoing server settings across - as far as I can see it all matched exactly the settings on the old pc that works fine - both incoming and outgoing settings - but it still won't send ! I have just been browsing the help articles and I am going to try to copy my Thunderbird 'Profile' across - hopefully this might do it ? I have copied the folder to dropbox. I think I will first delete the accounts I created in thunderbird and then try to upload the profile. Fingers crossed !

Hi, I have tried copying all my thunderbird data using the instructions on the help pages. The accounts both appear with all the emails etc that were there at the time I made the coy of the profile - which then uploaded to the new pc - but the settings that it uploaded still won't let it send or receive - even though its all working fine on the old pc.

I have been on to BT and they have remotely accessed my pc and tried all settings too - but they still cannot get emails to send.

Anyone got any ideas ??

Any suggestions will be gratefully received . Thank you

AFAIK, btconnect.com is an email address for BT (British Telecom). and it is connected to a 'lite' version of Office365, that can be accessed only through smtp and pop. Internet says that the outgoing server address is smtp.office365.com on port 587.

A simple test could be to use telnet (you know how to install telnet if it's not available I hope)

telnet smtp.office365.com 587

If you get something like:

220 DB6P191CA0016.outlook.office365.com Microsoft ESMTP MAIL Service ready (...)

there is no network problem between your PC and the server, your computer can talk to the server.

If telnet hangs for a few dozen of seconds and replies something along the lines of 'unable to connect', there is something nasty in your system (firewall ?)

If you get a 'service ready', reply with 'QUIT' and enter; it is possible to test the login this way but it's really more involved. If you get a service ready reply, there are only 2 possible causes for your problem: TLS error (it is a really bad problem, possibly linked to a firewall) or (more probably) a password mistake.

Anyway, the telnet test is the first step; it's absolutely mandatory. If you don't do it there is no reason to fiddle with the email settings, if you have a network problem nothing will ever succeed.

Thank you for your reply. I have tried the smtp.office365.com on port 587 settings - no luck. The password is definitely correct as i can receive all emails.

I don't know what telnet is - but i will google it and have a try.

I am not in the office until tomorrow - will let you know how i get on.

Thanks again for taking the time to reply :)

Jane