Three Columbia University deans who exchanged disparaging text messages that the university president said “touched on ancient antisemitic tropes” during a forum about Jewish issues in May are resigning, a spokeswoman said Thursday.

The deans, who had responsibility for undergraduate student affairs, sent the biting and sarcastic messages as they reacted in real time to Jewish speakers expressing concern about antisemitism on campus during the two-hour event.

In June, Nemat Shafik, the university president, placed the three deans on indefinite leave as an investigation proceeded.

In the texts, one dean suggested that a Jewish speaker was playing up concerns for fund-raising purposes. Another sent vomit emojis in reaction to the mention of a college newspaper opinion piece written by one of the school’s rabbis.

The deans did not respond to calls requesting comment. Samantha Slater, a Columbia spokeswoman, confirmed the resignations by email but did not provide further comment.

The episode, which became public in June when an attendee shared her pictures of one of the dean’s cellphones with The Washington Free Beacon, has been deeply embarrassing to the administration. University leaders have been trying to convince Congress, alumni and its own Jewish students that it takes antisemitism on campus seriously.