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A comment on Show HN: IsTempMail – Detect and block disposable email addresses. Parent comment

Re:Show HN: IsTempMail – Detect and block disposable email a... by bb88 on Tuesday March 28, 2017 @11:02AM (#13977130)
Not all email validators respect the + symbol.
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Re:Show HN: IsTempMail – Detect and block disposable email a... by cryptarch on Tuesday March 28, 2017 @11:08AM (#13977190)
Most do however, and setting up your own server and making it use underscores or dashes for that purpose is one way around that.

Related tutorial on how to set that up in Postfix: https://www.stevejenkins.com/blog/2011/03/how-to-use-address...

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Re:Show HN: IsTempMail – Detect and block disposable email a... by jrsmith1279 on Tuesday March 28, 2017 @11:25AM (#13977370)
With gmail you can use periods in the email address and gmail will ignore them. i.e. [email protected] is the same as [email protected] or even [email protected].
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Re:Show HN: IsTempMail – Detect and block disposable email a... by SparkyMcUnicorn on Tuesday March 28, 2017 @11:34AM (#13977471)
I did that for a bit, but there's only so many variations and remembering which email belongs to which service is not nearly as straight forward.
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