Email deliverability is a significant concern when you are doing cold email outreach.

When new email accounts aren’t warmed up, it’s necessary to send a limited number of emails during the first few days. This process teaches email servers that you’re a legitimate sender.

Warmup starts by sending a few daily emails to engaged recipients. This positive engagement strengthens your sender reputation, allowing you to increase email volume confidently and improve deliverability.

👉 While we don’t offer an automatic email warmup tool, you can find how to manually warm up an email account in this guide.

We don't recommend automatic warm-up tools, as they can harm your domain. Many email clients now recognize them and penalize associated domains.

We have set the default daily sending limit for any newly connected email account to 15 emails a day. However, you have the option to increase or decrease this number at any time from your Email Account Settings in Campaigns. If you would like to learn more about this, you can have a look at this article here.

Our guide will explain the importance of warming up your email account and give you instructions. However, should you have any questions after reading it, feel free to reach out to us via chat or email anytime, at contact@hunter.io.