Initially we decided to hide webmail login on tablets, phones and other smaller devices. This was because our Round Cube webmail client is not mobile friendly.
Turns out some people use it anyway. So we’ve added it back in. They will just need to scroll to the part of the page on their device where they can log in.
We added a note to the site suggesting some people may enjoy a better experience if they set it up as an IMAP account on their device so the e-mail appears better on their display.