My local credit union sent me a damn email from a DIFFERENT EMAIL ADDRESS to my private email that said I had "an important message" on my account that I had to

My local credit union sent me a damn email from a DIFFERENT EMAIL ADDRESS to my private email that said I had "an important message" on my account that I had to click a link to go to a THIRD UNAFFILIATED WEBSITE I had never heard of before to get it. I emailed their support directly asking if I was being phished. They said I was not. I still didn't look at the "important message" Really glad my accounts with them are unimportant.