Help whitelisting a domain/ip address

[AmyS2018]

Hello,

I am having a frustrating issue where emails sent from my business email account sent to @verizon.net ( also sent to @yahoo.com, @ymail.com, @aol.com) email address are either going right to the recipient's spam folder or not being delivered at all.  I found a link on these forums to apply to be whitelisted.  The link goes to an aol.com address.  I've applied to be whitelisted on aol and the response I received is "messages are being delivered from this IP" (Support Request #911227).

But my emails are in fact not being delivered to @verizon.net, @aol.com, @yahoo.com, and @ymail.com addresses.

For what it's worth, SPF and DKIM are enabled and my spam issue seems to be limited to verizon, aol, and yahoo domains.

I have seen other folks on these forums with the same problem and a Verizon Agent was able to intervene and assist.  I am requesting the same type of assistance.

Thanks for any help you can offer!