Email length

120 words (75-125 words range) ideal (source: Lemlist analysis of millions of cold emails)

The best click-through rates come from emails with about 20 lines, including line breaks.

https://www.lemlist.com/newsletter/how-to-increase-reply-rates-up-to-15-percent

Open Rates

Quickmail.io stats

• The average open rate for cold emails is 44%
• 8% of cold email campaigns have an open rate of 80% or more
• Approximately ⅓ of campaigns have a 60% open rate or more
• 20% of campaigns have an open rate of under 20% - this is a sign that they are landing in the spam folder

Reply Rates

Quickmail.io stats

• The best 25% of campaigns have a 20% reply rate or more
• Approximately 50% of cold email campaigns have a reply rate of under 10%
• Approximately 25% of campaigns have a reply rate of 10-20%.

Bounce Rates

Quickmail.io stats

• The average cold email bounce rate is 7.5%

Unsubscribe Rates

Quickmail.io stats

• The average cold email unsubscribe rate is 2.17%.

Click Rates

Quickmail.io stats

• The average cold email click-through rate is 3.67%

Best Days to Send Cold Emails

Quickmail.io stats

Sunday 3.8%
Monday 17.11%
Tuesday 18.34%
Wednesday 16.06%
Thursday 20.21%
Friday 20.98%
Saturday 3.5%

Average number of recipients per campaign

Quickmail.io stats

• The average number of prospects QuickMail users include in their cold email campaigns is 1,373.

Resources

Quickmail.io