A post office owner has been ordered to pay a former employee more than $300,000 after sexually harassing her for months.

David Smith, owner of the Geelong West Licensed Post Office, pestered Amanda Collins for sex, offered to pay her money if she would let him massage her thighs, and threatened to have sex with her even when she said she would not sleep with him.

In July, Victorian Civil and Administrative Tribunal vice-president Judge Pamela Jenkins found Ms Collins had been subjected to continued sexual harassment between January 5 and April 4, 2013, ultimately causing her to leave her job.

Ms Collins said she told Mr Smith she was happily married and that she saw him only as a "friend and a father figure", when he first told her he found her "beautiful, desirable and intelligent".

She thought this would be the end of the matter. However, what followed was a prolonged period of sexual harassment, which included lewd text messages, inappropriate touching and writing a poem inside a Valentine's Day card begging for sex.