Am running Yosemite 10.10.2. I use BT Yahoo IMAP (UK). Mail will not send, although no error messages appear Mail sends OK from my iPad and iPhone. I have deleted and re-installed Mail, with no benefit..
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
What does Mail/Window/Connection Doctor Show? If the server is red, select it and look at the Show Details box.
Troubleshooting sending and receiving email messages
Thanks for responding. Connection Dr shows all ok! "Connection succeeded" etc.
I can send via Webmail as well, but still not Mail.
bt yahoo mail not sending
