The system has a multi-lingual spell-checker, accessed from the email 'Compose' window.
The main download contains an American English dictionary.
Spell-check Dictionaries for Webmail
The English / American dictionary is included in the standard Mailtraq download. Other languages are available for download here. The system will automatically detect the language used based on your browser's settings.
The files should be placed in the folder: C:\Program Files\Mailtraq\dict