[nzach]

I've seen quite a few people here reccomending the use of . and + from gmail, but I don't think its a good idea at all.

Most people who work in the 'email marketing' space know about this feature. So it's common to see people recommending clients to 'clear' their email list before sending unsolicited emails. And some services even offer this as a feature in the platform.

And that also goes for custom domains hosted on gmail. You only need a MX query to learn who is responsible for mail handling in a specific domain.

[maeil]

> And that also goes for custom domains hosted on gmail. You only need a MX query to learn who is responsible for mail handling in a specific domain

Curious why this matters? Let's say you know [e-mail] is hosted on gmail, so what?

[nzach]

In this case is safe to assume [e-mail], [e-mail] and [e-mail] are all the same inbox. So you can just use the canonical form ([e-mail]) to hide where you got this email address from.