He has visited Britain regularly to back Robinson, whose real name is Stephen Yaxley-Lennon.
The Herald Sun reported the Israeli-Australian dual national had previously pled guilty to both charges.
Yemini threw a chopping board which hit his then-wife’s head while she prepared dinner in March 2016, leaving her with a contusion on her forehead.
he communications, which were sent between July 2017 and November 2018, included calling her a “P.O.S” and a “c***”.
In a statement to the court, Ms Lyford said: “What I will never forget is that he didn’t flinch when it happened.
“He didn’t ask if I was okay. He just walked by; I was left to tend to my own injuries and finish making the dinner.”
She also told the court she had tried to leave him on eight occasions.
“It was like I didn’t exist as a human being, I was just a vessel for his hatred,” she said.
“He terrorised me. I can’t imagine how it will be possible for me to have a relationship in the future.”
Yemini was fined A$3,600. He was also convicted of a third charge, of breaching a personal safety order after failing to take down an online video, which did not relate to Ms Lyford, as the court has ordered.
CORRECTION: An earlier version of this article stated Yemini threw a chopping board at his wife's head. He has asked us to clarify he threw the board and it hit her accidentally.