I got this error in hmailserver:
RECEIVED: 550 5.7.1 Service unavailable, Client host [ip] blocked using Spamhaus. To request removal from this list see ...
Do I need an SSL Certificate to be able to send emails to Outlook, Gmail, etc...?
What I have
So, first things first:
At this moment I can send emails from my computer using Wamp, PHP, Sendmail, and Hmailserver ONLY to Online Email Generators.
I can also send to Gmail but it will always go to spam folder because, like Hotmail I get some kind of blocking.
I'm unable to receive emails from Gmail or Hotmail/Outlook.
I have set up a no-ip domain name and I can access it from outside.
In Hmailserver > Advanced > Ip ranges >"Require SMTP Authentication" I have checked all fields
I have tried both ports 25 and 587.
Hmailserver > Settings > Protocols > SMTP > Delivery of email tab > I have premiumnews.ddns.net
What I want to be able to do
I want to be able to send many emails to any email service around the world (for legitimate purposes).
I don't want other ideas like using limited SMTP's like Gmail's, or any other.
I don't want to use Bulk Mail services.