I’ve always planned to do this really powerful trick for GMail but never got round to using it, but this could be put to good use:
Use Variations on Your Gmail address to Preemptively Filter
Gmail actually ignores periods that are inserted into your email address, and cuts off anything that appears after a plus sign. So if I sent an email to examp.le.a.d.d.ress@gmail.com, it would be delivered to exampleaddress@gmail.com, instead. It’s similar with plus signs: If I send an email to exampleaddress+test@gmail.com, the email is delivered to exampleaddress@gmail.com.
There are hundreds of valuable uses for the limitless number of email addresses that Gmail gives you, but one of my favorites is using the faux Gmail addresses to automatically archive unwanted messages.
For example, say a site requires you to subscribe to their daily newsletter in order to use their service. You can simply provide the address exampleaddress+unwanted@gmail.com, then create a filter that looks for to:exampleaddress+unwanted@gmail.com and automatically archives any of those incoming emails.
You could also use this strategy for clothing stores that ask for your email address at the register in exchange for a discount. Give them the address with an added period, like example.address@gmail.com, and again create a filter that archives messages to that address. This has the added benefit of saving that store’s promotions without them jamming up your inbox—that way, if I’m shopping for a new pair of Nikes, I can still search my Gmail archives for coupon codes and deals.
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