On 6/19/18 3:20 PM, Steve Atkins wrote:

On Jun 19, 2018, at 8:10 PM, Brandon Long via mailop <[email protected]> wrote:

They used to use qmail which uses - instead of the more common + for multiple 
addresses, wonder if this is a side effect of the forwarding for ymail.com 
using qmail

Likely. Though at one point it wasn't unusual to configure the separator to be - instead of + 
because of all the web forms that didn't handle escaping properly and would record 
"[email protected]" as "steve [email protected]".

Cheers,
   Steve

I have an address with pobox.com which allows using a +. There are many considerations for both the - as well as the + but in my opinion it would be much better to use -. I'm always amazed at how inconsistently the + is handled. Today there are fewer web facing interfaces that will reject it but in a surprising number of cases things go into the bit bucket further down the line.

Using a plus type address place an order at a web site and successfully receive the order but never receive any of the mail associated with the order. At large organization I created an account through their web site using my address without the plus. Received all my email from them for quite a while. Then logged in to the site, using my email address, and changed the address to contain a +. I logged out, no longer received any email from them, and then couldn't login to my account any longer because + was rejected as an invalid character. Had to call them up on the phone to have them manually change my email address back.

I haven't used the - that often but I can't recall any instances of where it wasn't accepted or with delivery issues caused by it. Depending on where you're submitting it, if you're allowed to supply an address that contains a + but it ends up suppressing email delivery from them, maybe that's not a bad thing!

-
John J.

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