Articles on: Troubleshooting

Subscription emails going to spam or not being received

Super Subscriptions sends transactional emails to your customers (subscription started, upcoming renewal, payment failed, and so on). If those emails land in spam or don't arrive, it's almost always an email authentication issue. This guide explains how to fix it.


Table of contents



1. Verify your sender email


Before any customer emails can be sent (or edited), you must verify the address they'll come from:


  1. Go to Super Subscriptions > Settings > Notifications.
  2. Enter your sending address and click Verify.
  3. Open the confirmation email and follow the link.


Once you see the Verified badge, sending is unlocked. Full steps: Notifications.


2. Set up email authentication (SPF, DKIM, DMARC)


Emails are sent on your behalf through our mailing service. To make sure inbox providers trust them, and to send from your own domain without landing in spam, your domain needs the right authentication records (SPF, DKIM, and DMARC) in its DNS.


We'll generate the exact records for you. Contact support with the domain you send from and we'll provide the SPF/DKIM/DMARC values to add at your DNS provider (or check an existing DMARC record if you already have one). Once they're in place and verified, deliverability improves significantly.


If your DNS is hosted by Shopify


Shopify automatically appends your domain to the name of a CNAME record. If you paste the full record name we send you, it ends up as something.example.com.example.com and never resolves, so verification silently keeps failing.


Enter only the part of the record name before your domain. This trips up most merchants who host DNS at Shopify, so check it first if records look correct but verification will not complete.


After adding the records, allow some time for DNS to propagate, then send yourself a test notification to confirm. If you are still stuck, send us a screenshot of your DNS records and we will check them for you.


3. Other things to check


  • The notification is enabled: confirm the specific email is toggled on in Notifications.
  • Check spam/junk and "Promotions": ask the customer to look there and mark the message as "Not spam," which trains future delivery.
  • Correct customer email: verify the address on the contract is right.
  • Content: heavily styled HTML or lots of links can trip spam filters; keep custom email edits reasonable.



Updated on: 07/29/2026

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