Plan requirement
| Subscription | Any plan |
| Access | Admin |
Zendesk can accept mail at any address on your Zendesk subdomain, registered or not. Useful for forwarding, and it makes your suspended list busier.
What it does
Read the address carefully, because this is the part people get wrong. The wildcard applies to your Zendesk subdomain: with it on, mail arriving at anything@yoursubdomain.zendesk.com becomes a ticket, whether or not you added that support address. It says nothing about your own domain.
Which matters, because your own domain reaches Zendesk only through a forwarding rule. The wildcard lets those rules point at addresses you never registered.
Turn it on
- Open Admin Center, then Channels, then Talk and email, then Email.
- Enable accepting wildcard email addresses.
- Save.
Where it helps
- Campaign addresses created on the fly, one per event, forwarded in without configuring each in Zendesk.
- A decommissioned address that still has a forwarding rule pointing at Zendesk, so it keeps working while you retire it.
- Forwarding you do not control, where another team set up a rule and told you afterwards.
What it does not do is catch a customer mistyping your own address. Mail to a misspelled address at your domain never reaches Zendesk; it bounces at your own mail server, and no Zendesk setting changes that.
What it costs
Spam. Automated senders try common addresses at every domain, and with wildcards on, all of it arrives. Most is suspended, but the suspended list gets considerably busier.
You also lose the signal that an address was wrong, because everything works.
Worth pairing with a rule
If you turn it on, consider a trigger that tags tickets arriving at an address you did not configure. That keeps the benefit while letting you see what is being used.
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