Unblocking/Whitelisting Smore at your School

Resources & FAQs

Q: Why can’t I access Smore at my school?

Some schools or districts restrict access to certain websites if they are not included on a pre-approved list.

If you believe this is the case at your school or district, please contact your IT department and request that they unblock/whitelist www.smore.com.

If you or your IT department require additional assistance, please contact us at support@smore.com.

Q: Why isn’t anyone at my school or district receiving my emails?

If you see a red “X” next to your entire contact list—and all of your recipients share the same school domain, your school’s spam filters may be blocking Smore emails.

👉 We recommend contacting your school or district’s IT department and asking them to whitelist Smore’s domain and IP addresses.

Q: What IPs should my school unblock?

Your school can unblock/whitelist the following domains:

mailgun.smore.com
users.smore.com
Smore.com
secure.smore.com
wss://collab.smore.com/
app.smore.com

IP addresses:

143.55.224.105
143.55.227.140
143.55.227.216
143.55.227.238
143.55.227.4
159.112.250.184
159.112.250.210
159.135.228.84
159.135.239.99
198.244.55.102
198.244.55.135
198.244.56.221
198.244.56.226
198.244.56.227
198.244.56.228
209.61.151.169
209.61.151.79
23.253.183.24
69.72.35.50
69.72.43.158

Once your IT department has unblocked/whitelisted the IP addresses and domains, your recipients should begin receiving Smore emails.

Q: Can I use a listserv instead of importing my contacts into Smore?

Yes, you can use a listserv, but there are two important things to keep in mind:

1. Unsubscribe risk: Because listservs group email addresses, if a single recipient chooses to unsubscribe or block Smore emails, they can inadvertently unsubscribe the entire listserv. 
2. Analytics limitations: Using a listserv will affect your newsletter’s Analytics, making the engagement data less accurate.

While it’s possible to use a listserv, we strongly recommend importing your contacts directly into Smore for more reliable results and accurate tracking.

Q: Can I change the “From” email address?

No. At this time, the “From” email address cannot be customized. All newsletters are sent from [username]@users.smore.com. We do this to:

• Ensure higher deliverability rates
• Allow Smore to track the delivery and performance of your emails

👉 To learn more about Unsubscribed Recipients, click here: What is Unsubscribed?