FAQ

Question: I have a large list of subscribers that I want to send out very fast. What is the speed of your server? How fast can I send my messages?
Answer: To answer this question, it is necessary to understand how email works.

Some ISP's prevent their DNS server from being able to resolve MX records. This is done intentionally, so that residential clients won't be able to use their own SMTP server.
Fortunately, you can use any public DNS server. It is not mandatory to use your ISP's DNS server. You can even combine theirs and yours, so if their DNS server will not find the right record, it will be further queried from the other DNS. We tried using some very good DNS servers from Level 3 communications. Their IP addresses are:
4.2.2.1, 4.2.2.2, 4.2.2.3, 4.2.2.4, 4.2.2.5, 4.2.2.6

Question: I am unable to send emails from my supanet.com account. I am getting the following message: "no way to send messages, no IP addresses are present, check that gateways are present"
Answer: This just says that it has no way to send any messages.

RBL or DNSBL is a means by which an Internet site may publish one or more dynamically changing lists in real time for others to use. It is mainly used by SMTP servers to block or flag mail coming in from certain IP addresses, thus effectively blocking and rejecting traffic from such sites. There are other uses for these protocols, but in our applications we are mainly interested in this particular use, so we will concentrate on that.

When running your own legitimate list, you should take every precaution and go above and beyond in making it known and convenient for people to get on the list and get off the list you are using to send email. Here are just a few of the suggestions if you are just starting out in this area:

One might ask a question: "If I send a lot of spam, what is the big deal? Users who don't want it, will just delete it, right"? The problem with that, is that it is not that simple. First of all, in order to properly transfer this email message, a lot of infrastructure must be set in place. Wires, switches, Internet bandwidth, SMTP server, managers, IT personnel, monitoring facilities and so on. The more email messages that has to be delivered through the servers, the bigger the volume of it all. New high capacity servers, more Internet bandwidth, more infrastructure and so on.

In the modern world, SPAM has become a significant issue for the ISP's and users alike. A lot of ISP's want to minimize amount of spam emails going through their systems and thus most of them follow a standard pattern for all users. Not that this is any standard at all, but when fighting spam, this has become a common practice and most ISP's are using these techniques to fight spam in their systems. Here is what they do: