A union representing 23,000 faculty members in the City University of New York system is accused of sending out emails to its members promoting anti-Israel rallies using antisemitic language.

Veteran law professor Jeffrey Lax, who runs SAFE Campus — which advocates for Zionist Jews in the Cuny system — showed The Post two emails sent to the Professional Staff Congress-CUNY union promoting these events.

The emails included a flier blaming all of the violence in Israel on a “Zionist genocidal campaign” against the Arabs living in Gaza, from the email address [email protected]

It also reportedly encouraged people “to channel your grief and rage over the nearly 1,000 Palestinians martyred, including nearly 300 children, into upcoming rallies across CUNY campuses and New York City.”

The poster then states, “Now, more than ever we must stand together against Zionist atrocities and with the Palestinian liberation movement reaffirming the right to resist and the right to return.”

However, Lax told The Post he is “99% certainty the union itself did that” explaining the union president “had to approve this email address.”

A spokesperson for the union denied the charges saying they were “entirely inaccurate.”

The union previously released a statement on October 12, saying: “We strongly condemn the kidnapping and murder of Israeli civilians by Hamas.

“Many of our members have families directly connected to this conflict, and the loss of civilian lives in Israel and Gaza is heartbreaking and horrifying.

“As a union of educators, we value communication, free speech and mutual understanding as a means to resolve conflict,” the statement continues.

“We respect the human rights of Palestinians and Israelis, and hope that space can be created for political and humanitarian solutions.”

But on Wednesday, an unidentified adjunct professor at CUNY accused Israel of carrying out 75 years of “ethnic cleansing” and “genocide” against Palestinians during a rally at the school’s Graduate Center in Manhattan.

Speaking through a megaphone to a gathering of more than 100 students, the unidentified teacher also accused the US government of supporting Israel for “capitalist” reasons alone, and called out politicians who she said failed to support pro-Palestinian movements.

The teacher’s words were met with chants of “Judaism, yes, Zionism, no!” and “From the river to the sea, Palestine will be free” — a statement many consider to be antisemitic by calling for the eradication of Israel from the Mediterranean coast to the Jordan River.

On Tuesday, more than 125 faculty and staff also signed a statement objecting to CUNY Chancellor Félix V. Matos Rodríguez’s efforts to distance the university system from student groups expressing support for Israel.

The chancellor had said in a letter on October 9 that CUNY “unequivocally” condemns Hamas’ acts of terrorism, and the school community “wholeheartedly reject the participation of organizations affiliated with CUNY in demonstrations that glorify [the Oct. 7] violence and celebrate the killings, injuries and capture of innocent people.

“We respect their right to free speech, but condemn their support of these crimes against humanity,” Rodríguez said of the student activism.

But the coalition of students and staff described Rodríguez’s letter as “baseless [and] prejudicial” saying it “reproduces the racist, Islamophobic rhetoric that has accompanied the drumbeat for war.”

They claimed Hamas’ attack on Israel was a “military operation” and said there is “no equivalence” between Hamas’ terrorist attack on Israel and the country’s retaliatory strikes.

“In rejecting all criticism of Israel, CUNY administrators are not only at odds with Palestine solidarity activists,” the group wrote. “They are also against the consensus opinion of regional and international human rights organizations.

“This is in no way to condone the death toll of the last 10 days — there is no justification for the targeting of civilians in any context,” they added.