It is quite common that for our email accounts we buy a shared hosting plan (since dedicated hosting is quite expensive). Shared hosting has a drawback that several users share a common IP address. If any one user abuses the system and sends out spam mails, the mail server IP address is blocked/blacklisted in several networks. The end result is that all accounts hosted under the same IP get blacklisted and if you send out emails from your own email accounts, your emails are rejected by most of the recipient servers due to your shared IP having a bad reputation. Thus you become a victim of mal-use by another user who is sharing the same IP address.
One solution to overcome this problem is that you buy a dedicated IP address for your own hosting account so that your IP address which is exclusively used by you only, remains always with a clean reputation. However, it is not easy to get a dedicated IP address now-a-days. Further, even if you get to buy one, it is quite expensive. A dedicated IP address may cost you $3-4 per month, which may be higher than your hosting cost itself.
Often when a shared IP address gets black listed your hosting provider gets into action and starts working towards finding the culprit user, banning their account and then trying to get the IP whitelisted in the various networks. However, this process takes time and may take anywhere from 2-10 days. During this period, you are just stranded and unable to send out emails to most of your customers and associates, thereby affecting your business badly.
This article will help you overcome this situation and find a way of sending out emails from another server during the interim period while the blacklisted IP is being sought to be whitelisted. The method I have suggested here will not impact your website hosted on the same server which has a bad IP.
"v=spf1 mx ip4:18.104.22.168 mx:mail.yourdomainname.com -all"
"v=spf1 mx ip4: 22.214.171.124 mx:mail.yourdomainname.com ip4:201.299.129.120 -all"
There are two other situations as well when you feel the need to maintain more than one email server for your domain. These are:
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Rajeev Kumar is the primary author of How2Lab. He is a B.Tech. from IIT Kanpur with several years of experience in IT education and Software development. He has taught a wide spectrum of people including fresh young talents, students of XLRI, industry professionals, and govt. officials.
Rajeev has founded Computer Solutions & WebServicesWorldwide.com, and has hands-on experience of building variety of web applications and portals, that include - SAAS based ERP & e-commerce systems, independent B2B, B2C, Matrimonial & Job portals, and many more.