I use mail addresses with a "+" sign when I want to separate out mail traffic for a user. Ex. the mail address I post on my blog is
tim+blog@example.com, whereas I might use
tim+spammycompany@example.com for signing up for a service so I can identify who might be shared my email address with someone else.
The trouble is that I've been forwarding my mail to my Gmail account and I never receive any email with the + sign in the address. I haven't been able to determine whether the problem is at Gmail's end or Zoho's end (or more likely, user error). Any suggestions?