External SMTP IP address blocked by Verizon


My personal server SMTP IP address - - is blocked by Verizon service. Submitting delist form results in the following reply:

"After investigation, Verizon Online Security has determined that e-mail from your IP address will not be allowed access to the Verizon Online e-mail domain"

I use QuickBooks with one of my websites. Sometimes I send ~400-500 invoices at once. But only few of them are for Verizon addresses.

May I have any advice on what exactly should I do in order to avoid Verizon blacklist. Do I need to add some sort of Verizon verification record in my DNS Zone, like Google does sometimes, or are there any specific requirements for the body of the messages I send?

I've searched various Verizon forums and they suggest to create personal case ticket, but the problem is that I can't do that until Verizon agent escalates my issue from the forum.

Any suggestion or additional information regarding this matter is highly appreciated.

Thank you in advance!

Re: External SMTP IP address blocked by Verizon

Hi IxWeb,

Your issue has been escalated to a Verizon agent. Before the agent can begin assisting you, they will need to collect further information from you. Please go to your profile page for the forum and scroll down the page to an area titled "My Support Cases". You can reach your profile page by clicking on your name located above your post, or at the top right of this page.

Under "My Support Cases" you will find a link to the private board where you and the agent may exchange information. The title of your post is the link. This should be checked on a frequent basis, as the agent may be waiting for information from you before they can proceed with any actions. To ensure you know when they have responded to you, you may subscribe to the case. At the top right of your support case there is a gear icon which provides a drop down menu with support case options. Click that and choose "subscribe". Please keep all correspondence regarding your issue in the private support portal.