Before we begin on this article, please be reminded that bulk emailing to non opt in database is illegal. This method is shared because of the legitimate need for a business and should not be use for any illegal activities. Setup your own bulk mailing server with high inbox rate is something that all email marketer requires. Therefore, we shall share the exact method to setup today.

Things Required:

  1. A dedicated server with at least 8 GB ram, you will need more if you require to send more emails.
  2. WHM/ Cpanel installed for dedicated server
  3. Get multiple dedicated domains
  4. Multiple shared hosting accounts spread across different companies
  5. One domain name
  6. A bulk email software (Interspire or some others like sendy)

Step 1: 

Setup your dedicated server with Companies that would sell you multiple dedicated IPs. Look in webhostingtalk for such deals. Remember to setup the reverse rDNS,DKIM and SPF.

Dedicated IP addresses may help but only if your mail server sends email on the dedicated IP address and not the server’s primary IP.  The best way to tell is to send a test message and review the headers.  If the primary IP is used, set your reverse DNS record to the server’s hostname.  If the site’s dedicated IP is used, set your reverse DNS record to the site’s domain name.

The SPF is a TXT type record that specifies what servers may send email on behalf of your domain. If you fail SPF authentication, most ISPs will give you  a poor reputation score and route your email to the spam or junk folder — some may even just block the email entirely.  you are often better off not having an SPF record at all than having an incorrect one.  If you have an incorrect SPF record, some systems will reject your email while if you simply lack an SPF record, you message is accepted but undergoes more rigorous spam checks.

Just like SPF records, you are better off having no DKIM record at all than having an incorrect one.

The goal of DKIM is to allow you to be certain that a message from is indeed from To do this, DKIM automatically adds a digital signature to each message. This signature is based on a private key known only to your server. You then publish a public key in your domain’s DNS record. The recipient server can then use the public key to decode the signature and be sure the message has not been altered. So the main goal here is to someone from tampering with an email while in transit.

While the initial purpose was security, many ISPs, including Gmail, Yahoo and others, do use DKIM information in their screening efforts. I know with Gmail, if your DKIM signature fails, you have a very high probability that your message will be routed to the spam folder. Run DNS checks using

Note the Received-SPF pass line.  This indicates that our SPF DNS record has passed.  Similarly, the next-line  shows the authentication results for both spf and dkim.  If either of these lines fail, you have a DNS record problem or a signing problem with DKIM.

Step 2:

Setup multiple sub domains in your domain DNS setup.

To setup multiple sub domains, go to your DNS setup access that is accessible through your domain name provider. Go under sub domain. Here you can setup multiple sub domains and tie each sub domain to a separate server IP address. This is where you setup multiple IPs from the various shared hosting providers that you subscribe.


Install the bulk mailing software into your main server. And then setup the server for different SMTPs. Remember to limit to max 30 emails per SMTP. The reason for this is to ensure higher delivery and inbox rate. ESP monitors number of bounces and spam complaints on an hourly basis. This is to ensure that your sending IP address do not get blacklisted. Over time, you can gradually increase this limit as you see lesser and lesser bounces (soft and hard).

The above is the exact steps to setup a high inbox rate server, remember exercise responsibility when using such a setup, do not engage in spamming.