Open an incognito tab right now. Search for "temp mail." Try it once. Sign up for a spammy newsletter using that temporary address. You will never go back to using your real Gmail for junk again.
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If a site starts spamming you, simply "kill" the alias without affecting your main account. 3. Using Gmail with 3rd-Party Temp Services Open an incognito tab right now
Use well-known temp mail services rather than obscure ones that pop up in a "gmail temp mail hot" search. gmail temp mail hot