Add and verify a Mailgun domain

Go to Account → Email settings → Add Mailgun email domain. Enter your Mailgun email domain (e.g. mg.yourcompany.com), your Mailgun API key, and select a region (EU or US). Save. Then add the required DNS records (SPF, DKIM, CNAME) to your domain — Mailgun provides the exact records. Click Refresh to check verification status after DNS propagation (can take up to 48 hours). Note: save the API key externally — Hubhus does not show it again after saving.

Set the default sending domain

In the Default email domain dropdown, select which domain to use as the fallback sender. Hubhus automatically uses the domain that matches the from-address in each email template; the default domain is only used when no match is found. If you only have one domain configured, it is automatically the default.

Set up failed delivery notifications

Click New delivery status update. Enter recipient email(s), set notification frequency (e.g. every 10 minutes — the system won't spam you if there are no failures), and filter scope: All, specific campaigns, or specific email templates. Create multiple rules to route notifications to different team members by campaign.