How many warmup emails should I send per day?

There’s no one-size-fits-all. Your ideal warmup volume depends on:

• Your email provider (ESP)

• The type of account (Microsoft, Google, custom domain)

• Your current cold sending volume

Here are our general guidelines:

For Microsoft:

• 2–4 cold emails/day

• 2–4 warmup emails/day

• Max 3 warmup replies (settable in Bison settings)

For Google:

• Use a 1.5:1 ratio of warmup to cold emails

Sending too many warmups can cause bounces and lower your score, so always balance based on your account type and usage.

If you need extra help, give us a shout on our live chat.