The Send button is in the Write window. And it is on a toolbar which may have been hidden.

In Windows or Linux, the <alt> key should make a menu appear. Or try F10.

Then you go to View and Toolbars and tick the checkbox.

bacto said

Hi there, the send button has disappeared from all windows, I have tried everything including updating to the new release 42.0, none of the windows has a send button anywhere, Please help! Thank you!

Zenos said

The Send button is in the Write window. And it is on a toolbar which may have been hidden. In Windows or Linux, the <alt> key should make a menu appear. Or try F10. Then you go to View and Toolbars and tick the checkbox.

Hi Zenos, thank you for your reply! I am using a mac, and although I did try that before, (I had to go to the menus in the apple -[top of screen] menus, - and did it from the main window, -it showed 'mail toolbar' and was checked) this time I did it from the write window (using apple menus) and found the 'composition bar' was unchecked. After checking it, now there is a send button, thanks again, have a great day!