How can I find my last post about Mac Mail in the Community?

I posted a problem I was having with my Mac mail program 2 or 3 days ago. My email address which has worked for years suddenly went off-line. I found the problem which required me to reset my password for the account. Unfortunately I can't find where I need to go to reset my password for that email account, I posted my problem 2 or 3 days ago, but I can't find my post and would like to know the best way to locate it to see if I have any replies. Thank you

[Re-Titled by Moderator]