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Re:Mailhero – a more permanent temporary email by jalami on Thursday May 26, 2016 @10:03PM (#11783388)
Also some websites won't let you put + in the address despite it being a valid character per protocol. Crippling email sign ups for one company, astonishing.

Fastmail has subdomain addressing. eg. [email protected] which is a lot harder to detect.

Re:Mailhero – a more permanent temporary email by JonathonW on Thursday May 26, 2016 @10:48PM (#11783547)
I like Yahoo's approach-- they do their disposable email aliases like this:

[email protected]

Where basename is user-chosen (and not necessarily related to the real email address), and the suffix has to be registered ahead of time (so a spammer can't just start randomly generating suffixes to avoid filters).