A senior staff member described the content as "offensive, racist, sexist and degrading to women".
These messages had been sent from Machen's home computer to his work email address and two emails had been forwarded to others from his work account. Another four text files had been stored on his desktop.
Before dismissing Machen, the company approached him with its concerns, conducted an investigation into whether his actions constituted serious misconduct and looked at actions short of dismissal.
He had signed an employment agreement that included clauses pointing to the responsibility of the employee to "know and observe all company policies" and "refrain from acting in a manner that brings, or could bring, the company into disrepute". It made clear that breaching the acceptable computer use policy would be viewed as serious misconduct, warranting summary dismissal.
The policy specifically stated that downloading, requesting, transmitting or retaining illegal material or material that could be considered abusive, discriminatory, defamatory or offensive or which could bring RD1 into disrepute was considered unacceptable.
Although amendments had been made to the policy during Machen's employment, the authority found these had been explained to staff.