Gitlab doesn't send confirmation mail for an additional email

I tried to add new email to make it primary, but I couldn’t because confirmation email wasn’t sent

Steps:

  1. Registered with email AAB@company.org
  2. First email had a mistake, I asked admin to replace it with email AAA@company.org
  3. Tried to add email AAA@company.org
  4. Didn’t receive confirmation mail (even after resending)

Reference: