Are you using a custom domain to send or receive confirmation and notification emails? You may need to edit your domain's Sender Policy Framework (SPF) records to ensure proper delivery.
SPF records are a list of hosts specified by the domain administrator that are verified to send email on your behalf. The SPF record is located in the Domain Name System (DNS) settings for the domain.
Without the proper SPF records in place emails sent by Formstack may be blocked or flagged as spam. If you have an existing SPF record, you will want to add the following string to it to allow Formstack to send email on the behalf of your domain:
If you don’t have an existing SPF record, use this string to authorize Formstack as a sender on the behalf of your domain while not interfering with existing email services:
"v=spf1 a mx include:_spf.formstack.com ?all"