Do you need email warmup?

Email warmup is generally recommended for anyone sending large volumes of emails from a new or dormant email account, domain, or IP address. It helps build a positive reputation with email service providers (ESPs) and increases the chances of reaching recipients’ inboxes rather than spam folders. 

Here are situations where email warmup is most beneficial:

1. New or inactive email accounts

• If you’re using a new email address or an account that hasn’t been active, ESPs will consider it unestablished, which may limit deliverability. A warmup gradually builds trust, which is especially useful for accounts used in cold outreach or marketing.

2. New domains and IPs

• New domains and IP addresses start without any reputation, so sending high volumes of emails right away can look suspicious. By warming up a new domain or IP, you establish steady, reputable sending behavior that reduces the risk of getting flagged by spam filters​.

3. High-volume sending plans

• For businesses planning to send thousands of emails regularly (e.g., newsletters, promotions), a warmup helps build a strong sender reputation, ensuring better deliverability over time. It’s also useful for campaigns requiring consistent engagement metrics, such as high open and click-through rates​.

When warmup may not be necessary

• Low-volume senders: For accounts sending only a few emails per day or week, warmup may not be essential since ESPs are less likely to view low volumes as spam.
• Shared IPs: If your account is using a shared IP with a pre-existing warmup and good reputation, you may not need a dedicated warmup for your specific account​.

Email warmup is critical for high-volume, new, or dormant accounts to establish trust with ESPs, making it an essential practice for maintaining high deliverability. For lower-volume senders or those using established shared IPs, the need for a warmup is less crucial.