We have recently implemented a profanity filter for emails. If you use language that is of this nature your emails will be automatically blocked.
I personally find this type of language is inappropriate via text and has been used excessively by trolling type people, in our day to day lives is common to curse on occasion but is different in verbal communication. Problems will not be solved by cursing at me nor will any practical business.
If your email or business name contains a curse word it might be blocked. Please send an email from a different company account. For example a company called "SHITE INDUSTRIES" will be blocked (A better name might be a wise decision). I can remove the filter for your company in this case.