What does "Optimized" mean on my SendFox emails?

Optimized means SendFox sent your email only to your engaged subscribers to protect your sender reputation. It happens on every plan; look for the badge on Emails.

What does the Optimized badge mean?

If a sent email on your Emails page shows an Optimized badge, SendFox sent it to your engaged subscribers — contacts who have opened your emails recently — instead of your full list. As the badge's tooltip puts it: "To protect your sender reputation, SendFox sent this campaign to your engaged subscribers only." SendFox tracks each contact's engagement for you — see contact types in SendFox.

Optimization works the same way on every plan — Free, Lifetime, Pro and Enterprise. While your account is optimized, the email editor also shows a banner saying so, with a link to contact support.

If emails keep going out to subscribers who never open them, Gmail and other inbox providers start routing your emails to spam — and can flag your whole sending domain. Optimization keeps your open rates high and your sender reputation healthy, which is what keeps you out of the spam folder.

Why was my account optimized?

SendFox places an account into Optimization mode automatically when its emails draw too many spam complaints. The SendFox team can also turn it on after reviewing your sending — for example, when your results are well below industry standards. When that happens:

• You receive an email notification telling you your account was placed into Optimization mode.
• Your future campaigns are sent only to engaged subscribers — people who opened one of your emails in the last 90 days.
• Automation emails skip imported contacts who haven't opened your emails recently. Contacts who signed up through your forms or Smart Pages still receive them — see how automations work.

What does the Limited badge mean?

The Limited badge means a send was stopped early. Hover over it to read: “This send was stopped early to protect your deliverability. For your next campaign, try sending to a more engaged, recently active list.”

How do I get out of Optimization mode?

• Send to people who want your emails. Spam complaints are what switch Optimization on automatically, and double opt-in confirmed subscribers open more and complain less.
• Clean your list. Remove or stop emailing contacts who haven't opened in months — see how to organize and analyze your contacts.
• Check your content before sending. Tools like mail-tester.com score your email for common spam triggers.
• Write subject lines people open. Higher engagement is the single biggest deliverability lever.

Optimization doesn't switch off on its own. Once your engagement metrics recover, contact the SendFox team at support@sendfox.com to have your account reviewed.

Troubleshooting

My email went to fewer people than expected

• Optimization is one of four common causes — the Engaged only checkbox, unconfirmed contacts and skipped lists or tags are the others. See why didn't my email go to everyone on my list?

My email shows "Limited"

• The send was stopped early to protect your deliverability. Send your next campaign to a more engaged, recently active list, and email support@sendfox.com if you'd like a review.

Still stuck? Search help.sendfox.com or email support@sendfox.com with the subject of the email, the badge it shows (Optimized or Limited) and the date you sent it.

Frequently Asked Questions

What counts as an "engaged" subscriber?

A contact who opened one of your emails in the last 90 days. While your account is optimized, new contacts you haven't emailed yet don't count either — unlike the Engaged only checkbox, which includes them.

Does Optimization affect automation emails?

Only for imported contacts: imported contacts who haven't opened your emails recently are skipped, while contacts who joined through your forms and Smart Pages still receive automation emails. See Do automation emails count toward my SendFox send limit?

Can I turn Optimization mode off myself?

No — it stays on until the SendFox team reviews your account. Improve your engagement metrics, then contact support@sendfox.com to ask for a review.