atomic email sender - using proxies

Hi
Does anyone have experiece using atomic email sender using proxies option ?
I can't make it work sending with proxies.. :-(

I have downloaded the demo version .. trying to send with proxies.. (smtp work, though)

I have open the required ports in firewall and checked
in Telnet that port is actually listening

I have tried open proxies and private proxies

I have talked to atomic support... no solution

I have tried this on my vps and also on my own computer..

Anyone have any advice/ suggestions ?

Most proxy providers silently block sending emails from their IPs because the ips get blocked too fast.

You need to have a good quality IPv4 proxy, and configure them in the proxifier program, specifying the path to the desired software