If email from Wells Fargo is being blocked, then Wells Fargo will have to take the initiative, to get their emails cleared. They will need to send an email to either "firstname.lastname@example.org", or "email@example.com", or firstname.lastname@example.org" Wells fargo will have an IT staff that is supposed to handle things like that
NORMALLY, email gets marked as spam, when people keep receiving unsolicited commercial email, (UCE) from a company, even after they have requested NOT to receive it. The report it to Cox, (email@example.com), and after enough complaints, the email address gets blocked. (BTW, gmail, yahoo and others do the same). Just checked my spam folder on gmail, legitimate emails from Submarine veterans cmdr, WD verification of my email, and several others.