Spelling and language

Squirrel mail supports both India, UK and US English. That can be selected from "Options" –> "SpellChecker Options".

While typing, web browser (e.g. firefox) spell checker also does live spell checking for text boxes.

To add UK English dictionary to Firefox download UK English dictionary in Firefox from https://addons.mozilla.org/en-US/firefox/language-tools/. Then right click on the red colored misspelled text, the select from the "Languages" list.