> From: James Worix
> I have a private server that I use to host a few websites
> and send emails for my company and some of our affiliates. However, we
> have an issue with mobile devices that use third party email clients to
> send and receive emails. The problem being that when they are in the
> field using Verizon LTE or similar that their dynamic ips are
> automatically blacklisted in most major DNS lists.
A (blacklisted) dynamic IP-address in a Received header line is normal.
Most honest users worldwide are in this situation.
IP-address of your server is searched in blacklists,
not IP-addresses from every Received line in the header.
Please give an example of full unredacted header and the
error message your user got while trying to send that message.
Also, check your server in
http://valli.org