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Aliases, forwarding accounts and non-forwarding throwaway email addresses are all forms of disposable email addresses. Though, they are quite different from each other. In this blog post we will review and compare aliases, forwarding accounts and non-forwarding throwaway email addresses.


Alias, in the context of email, is an email address provided by an ISP or email service provider that is mapped to a user's primary email address. For example, in, Yahoo or Gmail you can easily create aliases. Aliases are not separate accounts. Rather, they are just separate email addresses. When an email is sent to an alias, it is delivered to user's main account. Some providers allow delivery to a specially designated folder.

Example of an Alias

For example, if your email address is, you can get an alias and email sent to will be delivered to your main address. Aliases are easy to create and delete and thus they can be considered as a form of disposable email addresses. However, they are not as bad as throwaways email addresses.

Detecting Aliases

When it comes to detecting an alias, it can be easy or impossible. Here is why. When provides an alias, it the email address can be totally separate from your main address (as given in the example above). However, aliases in Gmail and Yahoo work a bit differently. In Gmail for example aliases are created by appending +aliasname to your main email address. Thus, if your Gmail address is, your aliases will be or and so on. As you can guess, in order to get a user's real Gmail address from her Gmail alias, you just need to remove the text between + and @ signs.

Forwarding Accounts

Forwarding accounts are email addresses created on a separate domain from user's main email domain address. Forwarding accounts as the name implies, forward email to user's real email address. Detecting forwarding accounts is very complicated unless the forwarding service provider is well known.

Non-forwarding Throwaway Email Addresses

Non-forwarding throawaway email addresses are truly disposable email addresses. They are created for one-time use. Currently there are dozens of disposable email address providers. In our blog post titled What are Disposable Email Addresses and How to Detect Them we reviewed disposable email addresses in a greater detail and showed why they can hurt your business.

Main problem with disposable email addresses is that they do not bounce back and at the same time they do not get opened or read. From an email marketer's perspective this is a horrible situation. Not only you spend money sending to ghosts but you also get distorted stats about your audience.

The bottom line is that if your business depends on email, you should reject disposable email addresses. For this to happen, you need to have a reliable and cheap way to detect them. You can use our InboxHit API to detect disposable email addresses effortlessly. Get started now.

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InboxHit provides solutions and services to boost email deliverability, increase email marketing efficiency and achieve 100% innox hit rate. Use InboxHit API to detect disposable emails, block disposable emails, detect and block DEAs, validate email addresses, check if a mailbox exists, reduce bounces, boost deliverability, increase email marketing efficiency, reduce email delivery costs. InboxHit API is also available on RapidAPI.