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Re:Show HN: Maskmail – anonymous email address service by ryan-c on Wednesday June 27, 2018 @10:26AM (#17408360)
Many services block all mailinator domains by simply doing a live MX record lookup and noting the domain is pointed at mailinator (there are SaaS companies that offer this via an API). Another thing I've noticed is blocking email addresses on domains that do catch-all receiving. It's really frustrating.

I've used sneakemail for a very long time, but I've found that it's actually been resulting in worse things than simply having my registration blocked.

* Credit Karma banned my account (that I'd had for eight years)

* HP canceled my order for a laptop AFTER IT SHIPPED, recalling the package

I've had to switch to sneakemail only for things that I wouldn't provide my name to anyway.

Re:Show HN: Maskmail – anonymous email address service by vxNsr on Wednesday June 27, 2018 @03:18PM (#17410959)
I don't really know anything about MX records or email in general, but couldn't maskmail just always point to the forwarder domain (yahho, gmail, etc) instead of their own hostname?
Re:Show HN: Maskmail – anonymous email address service by ryan-c on Saturday June 30, 2018 @05:47PM (#17432900)
No, the forwarder has to re-send the message with different envelope information.