I dunno. I am still waiting on this as well.
There are mixed views. A lot of people on Twitter claim that the donate button is always there in the footer of his emails. Also on his truth social the comment with the donation isn't there which is being reported.
https://www.snopes.com/news/2022/07/14/ivana-trump-email-donate/
'The statement in the email about Ivana’s death came from Trump’s Truth Social account. No such donation or fundraising button appeared in the Truth Social post.
It’s unclear if the donate button for fundraising was part of a standard footer that is regularly placed at the bottom of such emails. We reached out to the PAC for more information and will update this story if we receive a response.'