The eyepin delivery software is a program developed by eyepin engineers. It does not contain any third party code and runs on UNIX, LINUX and OSX systems. The delivery software is a native 64Bit compiled stand alone program and it's fast, real fast. The software is running on our own eyepin cluster/cloud. The performance is just limited by CPU power and or machines. Technically speaking the system is capable to deliver Emails at a rate never seen before.
It's always the game, spam filter versus delivery software. First we need to understand that there are two types of spam filters:
- the ones which check before it accepts the Email (server filter) and
- the others that check the Email content (client filter).
The server filter is more common and is harder to overcome. That's where eyepin delivery joins the game.
Unlike any other Email delivery software, eyepin delivery uses a special algorithm in order to analyze and profile the various receiving Email servers. This treat logic allows a 99.99% delivery rate and is still getting improved. In combination with a high performance database, the system tries to deliver precisely. That means the eyepin delivery software knows ahead of an delivery if the receiving Email server will accept a particular Email or not. So we can avoid a second delivery (SMPTCode 421,451,…), and guarantee a speedy reception. There are many more aspects to the topic treat logic like, multiple IPs, multiple SMTP sender Emails, special headers, and so on. Many of this tricks are needed for Email servers which require more sophisticated delivery techniques.
The Email server does not proof read the Email content. So it is possible that an Email bounces, because it includes bad content. However, eyepin has a built in content checker in its frontend. This tool will verify the Email content for bad words, before the newsletter is built and sent.