Monday, February 7, 2011

DISPOSABLE AND TEMPORARY EMAIL ADDRESS

Everyone knows that some of the email addresses on your opt-in list will stop functioning with time. When someone changes job, for example, their work account gets deleted and future emails to that address bounce back as undeliverable.
It's an email marketing fact of life.
But nobody expects addresses to go bad in around 15 minutes. But that's happening more often with the growth of disposable email addresses. Here's what you need to know...

What are disposable email addresses?

The term "disposable email address" refers to addresses that have no long-term value to the owner and are easily discarded.
They are used in submission and sign-up forms when the address owner is skeptical of the trustworthiness of the website requesting the address, and/or is concerned about subsequently receiving spam or unwanted email from that source.
A different disposable address is used for each submission or sign-up form. So if you sign-up to newsletter X using a disposable address, then that email address would never be submitted elsewhere.

Semi-permanent disposable email addresses

Semi-permanent disposable addresses are intended for permanent use, but are easily closed down at no loss to the address owner.
If the owner ever wants to cease getting email from a store or site, they simply discard the unique email address they used at sign-up. Since the address only gets email from that single source, its loss doesn't affect the owner's email communication with anyone else.
People often use such disposable addresses to control spam and unwanted email. Say I sign up to a store's newsletter but find the material they send useless. I could unsubscribe, but if I don't trust them to honor my request, I can simply discard the unique disposable email address I used for that sign-up.
Equally, if I find other sites or individuals sending me email using that unique address, then I know that this address was sold or otherwise passed on to a third party. I can save myself a junkload of spam by abandoning the account. None of my other email is affected.

Temporary email addresses

Temporary addresses are identical to the semi-permanent disposable email address with one difference: they expire automatically without the owner needing to do anything. The temporary address might, for example, "self-destruct" fifteen minutes after its creation, or a month after creation, or "after receiving five emails."
These addresses are typically used when the owner needs an email address to complete a transaction, but does not want any further emails from the transactional partner and does not trust them with a more permanent address.
So the owner could submit a temporary email address on a form giving access to a company's white paper. With a 15 minute lifespan, the temporary address is active long enough to receive the email with the white paper link. But any further emails from that company would bounce as undeliverable.

Disposable address services

Many services make these kinds of addresses available to Internet users, often for free. Typical example
Some of the more popular webmail services also support disposable addresses. Gmail, for example, allows you to set up as many  as you like. When you no longer want to read emails sent to a particular alias, you can simply have them redirected to the trash folder.

Disposable addresses and email marketing

The semi-permanent disposable email addresses are not a huge issue for email marketers. If you're not selling or passing on addresses and if you're delivering valuable, relevant emails (both of which are recommended practices anyway), then a disposable email address is as good as any other.
If you are selling on addresses or sending rubbish email, you have bigger problems to worry about than disposable email addresses.
Temporary email addresses are another issue. They will go inactive, irrespective of your email marketing practices. The main issue here is the opportunity cost. Obviously, you have no chance to develop an email dialog / relationship with a temporary email address. And dead addresses mess with your statistics.
There are, however, various ways you can discourage their use.
You can reject form submissions that contain temporary addresses. Lists of temporary email address domains are apparently available for exactly this purpose.
The blacklist approach is short-term. It doesn't address the reasons why people use a temporary email address. Nor does it seem likely to encourage people to resubmit with a more permanent email address. Nevertheless, it's an option which is widely used.
A longer-term approach is to tackle the reasons why people use temporary addresses. People do so because they don't trust you to respect the privacy of their email address. Or because they object to having their goal (a purchase, a download) tied to a subsequent and compulsory stream of emails they simply don't wan

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