[setopt]

Same here! Both GMail and iCloud Mail support this, among others.

It works 95% of the time, but be aware that it sometimes doesn't:

- Some webpages refuse addresses with a + in it.

- I’ve had at least one instance where I lost an important email because I could register and receive emails from them, but one of their internal databases silently failed on my address. (I lost the proofs for a paper accepted in a journal, and it took some time to figure out what was going on…)

- There was at least one web page that was smart enough to just remove the +… from my address after I registered.

- Some webpages require you to be able to send emails to them from the exact address you sign up with (including the +…)

Overall I’ve been happy with the feature since it makes e-mail sorting easier, and you can just redirect a given subaddress to spam if they leak it, and it’s less effort than creating a “real” email alias per page. Just keep in mind that there are many ways it can fail, so you might not want to use it for anything that is actually important.

[gloriousternary]

Since I run my own email server, I get around some of those issues by configuring Postfix's recipient_delimiter to use . rather than +. I've never had a site treat [e-mail] as anything other than a normal email address. It certainly doesn't justify the effort I've spent dealing with deliverability issues, but it's a nice perk.

[Z7YCx5ieof4Std]

When you can't use a + use a .

[e-mail] is [e-mail] is [e-mail] is [e-mail] etc

[alexriddle]

This works for some providers (Google) but definitely isn't universal - MS/Outlook doesn't support it for example

[andrewSC]

I literally setup an alias last week in O365 Outlook using the pattern [e-mail]? I’ve been able to receive and send using the alias as well. Maybe this is a new feature/behavior?

[alexriddle]

I may have misunderstood the parent comment - with gmail, you can add dots anywhere in the mailbox and it all goes to the same place (standard gmail, not workspace)

e.g [e-mail], [e-mail] and [e-mail] all are the same user and will go into their mailbox (which I have used to avoid the + stripping that some sites do)

[e-mail] and [e-mail] are two distinct users.

Obviously if you control the domain or use a provider who supports it you can add an alias with punctuation but then you might as well just use e.g [e-mail] to track the email source.