Why does my account say 'warming up'?

In order to ensure SendFox continues to have high deliverability rates for all our users, we have an optimization system in place. 

The 'warming up' occurs on the first large send. All accounts sending to a small number of contacts will be warming up as well. 

If your emails have good stats in the first 24 hours, your emails will continue to send to the rest of your mailing list. If they don't have good stats, we optimize your email to improve your deliverability and protect your sender's reputation.

You can see how much time will it take for the warmup process to complete if you hover over the "Warming Up" button:


Minimum required stats need to be greater than 10x lower than industry averages.

If minimum stats are not met, we stop the send due to poor results. During this time, no other emails can be scheduled until the throttled send is measured.

If the email doesn't have good stats, future emails will ONLY be sent to active subscribers.

If you have any questions about this, feel free to reach out to our Support team - support@sendfox.com

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