Teacher-to-student messaging starts with a one-time setup email sent to each student's school email address. Most districts block outside senders on student accounts by default, so that email won't arrive until your IT team allows ClassDojo. This article covers what to allow and where to add it. Share it with your district IT team.
Why This Step Is Needed
Students need to set up their account before a teacher can message them. They do that by clicking a link we email to their school address.
Almost every K-12 district limits incoming mail to student accounts to a short list of approved senders. That is a deliberate safety setting, and a good one. It also means our setup email gets refused before it reaches the student's inbox.
Adding ClassDojo to the approved list is a one-time change on your side. It clears the way for every student in the district at once, and nothing needs to change on ours.
What to Allow
Two things:
- Domain: classdojo.com
- Sender: hello@classdojo.com
Our mail is authenticated with SPF, DKIM, and DMARC records that are already published, so your mail server can verify our messages automatically. We send through more than one mail provider, and the IP addresses in those pools change as sending volume shifts. A domain allow keeps working through those changes. A fixed IP list will stop working without warning. Google and Microsoft both recommend allowing by domain for this reason.
Where to Add It
The setting goes by a different name in every console. You are looking for an allow list, safe senders list, approved senders list, or bypass list.
Google Workspace for Education
Admin console > Apps > Google Workspace > Gmail > Spam, phishing, and malware > Email allowlist. Add classdojo.com.
We suggest scoping the entry to your student organizational unit rather than the whole domain, so your filtering stays tight everywhere else.
Microsoft 365 and Exchange Online
Add classdojo.com as an allowed domain in the Tenant Allow/Block List at security.microsoft.com. Microsoft treats those entries as temporary by default, so if you want the change to stick, a mail flow rule that exempts classdojo.com from spam filtering is the more durable option. Follow whichever your district policy prefers.
Content Filters and Security Gateways
Many districts run a separate student safety filter alongside Google or Microsoft, such as Securly, Lightspeed, GoGuardian, Bark, iBoss, Barracuda, or Mimecast. Each one keeps its own allow list. If ClassDojo email still isn't reaching students after you make the change above, that filter is the most likely place left to check.
Also worth confirming: if you have not already allowed our domains and URLs on your network, see Domains and URLs to Allow List.
Confirming It Worked
Once the change is in place, share a test student email address with your ClassDojo contact, and we will send a setup email to it and confirm delivery on our end.
Common Questions
Does allowing your domain weaken email safety for students?
The entry applies only to mail from classdojo.com, verified against our published authentication records. Students will not start receiving mail from other outside senders as a result, and you can scope the change to your student organizational unit.
Can ClassDojo change something on your end instead?
No. The block happens on your mail server before the message reaches the student, so it can only be cleared in your email settings. That is also why one change on your side resolves it for every student in the district.