Creating your own Catchall Email Business? Catchalls is very popular among spammers? What is it popular? To explain that, we should have a basic understanding of what catchall does 1. What is catchall? Catchall is a kind of email "alias". It will catch all the emails belong sent to a certain domain to a certain email address if there is no specific mail box for that email addresses. So for example you have an email address like [email protected]. So when you set up catchalls, all the email sent to *@something.com will end up in [email protected]. You may ask why we don't just create multiple email accounts on something.com instead of using only one email account? There are several advantages of this: + Each email account have each own folder in HDD to store emails. + Each email account occupy a record in a table in a database. So for example if we want to create 5000 email accounts, we need to creaet 5000 directories and 5000 records in the database. That would be a death sentence for catchall providers if they do that (create an email account for each email address). Because let's say a provider has 1000 subscribers and each will create 50 email address a day (normal of mass spammers), they will need to create an whooping 50 * 1000 = 50000 folders and 50000 database records a day. Instead, if the provider uses catchall email alias, they only have to create 1000 folders and 1000 database records for the life time! 2. Eastimating the cost the profitablity of the business: + Expense: You can buy a dedicated server with Intel Xeon CPU and 4TB of HDD for about $44/month. You can buy a .com domain with whoisguard for $11 per year so the cost for each month is just below $1 + Initial investment: You can hire someone to set up all the stuff for for just about $200 Now, let's see how the catcall providers are charging their users. I'll take a popular catchall provider as an example. The cheapest plan cost $6.5/month with the following features Unique catchall: 1 (which means 1 mail folder) Total inbox space: 300MB Max threads: 300 (These are the link building software threads, all connection to the email account happens in 1 thread so this doesn't mean much) So for example if they have 500 subscribers for their lowest package. Their revenue would be 5000 * 6.5 = $3250. The infrastructure cost is $45 so their profit is $3250 - $45 = $3205 which is very high. 3. How do we set up a catcall email service: First take a good look at this topic of mine: https://www.blackhatworld.com/seo/s...mated-seo-tools-for-just-10-per-month.911594/ Now for example, let's say your domain is yourdomain.com and you added a record in the virtual_domain folder. Now when a customer register for your service, what happens? Let's say his username is georgemichael. You will create an email account for him at [email protected]. And then you create an alias with the name @georgemichael1.yourdomain.com by Gist: https://gist.githubusercontent.com/...c91c32f0f0336f1f49a4149afe9/catchall-alias.cf That's backend. Now you can hire someone to create the frontend (user management stuff) for you or if you have programming skills you can do it yourself in just a few days. Have anything to discuss, please contribute.