TL;DR: Use this guide to set up lemwarm, choose the right plan, adjust your warm-up settings, and track your deliverability results. This helps you build sender reputation safely so more emails land in the inbox instead of spam. Getting started takes about 5–10 minutes, while the full warm-up process usually takes 3–5 weeks.

If you're just starting with lemwarm and want to optimize your email deliverability, this guide walks you through the essentials so you can get to your first results quickly.

lemwarm helps you build and protect your sender reputation over time. A proper setup reduces the risk of emails landing in spam, gives you visibility into deliverability issues, and helps you scale outreach more safely.

Before relying on your deliverability score or launching campaigns, make sure the technical setup is in place.

We recommend keeping lemwarm active at all times for the best results. Ideally, let it run for at least one month so your sender reputation has enough time to build.

Before starting warm-up, add your billing details and select the lemwarm plan that matches your needs. From the dashboard, click your profile in the bottom-left corner, then open Plans & billing.

On the billing page, find the lemwarm card and click Manage plan.

Then choose your billing frequency using Monthly, Quarterly, or Yearly.

If needed, adjust the number of seats and click Update to confirm the plan change.

After selecting a plan, connect the mailbox you want to warm up. Add the email address and the password used to log in to that mailbox.

Once the mailbox is connected, complete the verification step. After verification, click Start lemwarm so lemwarm can begin sending warm-up emails and replying when needed.

By default, lemwarm automatically calculates the best sending volume based on your deliverability score. If you prefer, you can set your own limits in Warm up.

Tip: This gradual increase usually takes 3–5 weeks and is safer than jumping straight to high sending volumes.

To avoid clutter, create a mailbox filter so warm-up emails are separated from your regular conversations. This makes it easier to stay organized while lemwarm continues running in the background.

Your deliverability score shows how likely your emails are to land in the inbox instead of spam. Use it as your main signal for deciding whether to keep warming up, start campaigns, or reduce volume.

The first performance graph shows how your cold emails are performing over time. Green bars represent emails landing in the Inbox, while red bars represent emails landing in Spam.

The second graph helps you track reply performance. It shows whether replies are landing in the inbox or spam, which gives you another signal about mailbox health and overall deliverability.

lemwarm offers different billing frequencies, including monthly, quarterly, and yearly options. If you change plans or seat counts, charges update based on the selection you confirm in Plans & billing. Review your billing cycle carefully before updating, especially if you are managing multiple seats.

Issue: My deliverability score is low or not improving
Root cause: The mailbox is still early in the warm-up phase, or your technical setup and sending habits are hurting reputation.
Fix:

Issue: My emails are landing in spam
Root cause: Sender reputation, email content, daily volume, or list quality may be hurting deliverability.
Fix:

Issue: My inbox is filling up with lemwarm messages
Root cause: No mailbox filter has been set up for warm-up emails.
Fix:

Issue: I cannot change my plan
Root cause: The change may not have been confirmed, or you may be editing the wrong workspace billing page.
Fix:

By following these steps, you’ll have everything in place to start warming up your mailbox, improving sender reputation, and monitoring results directly from your lemwarm dashboard.