In this article, you'll learn how to enable and configure email warmup for your connected mailbox in We-Connect.
Email warmup is an essential part of cold email outreach. When you start sending from a new mailbox, or scale up volume on an existing one, mailbox providers like Gmail and Outlook watch sending behavior closely. Sudden spikes in volume are one of the fastest ways to land in spam folders or get your mailbox flagged.
Email warmup solves this by starting your sending volume low and gradually increasing it over time, mimicking the natural ramp-up of a real human's email activity. This builds a positive sending reputation with mailbox providers and protects your deliverability.
If you're a regular We-Connect user, this works just like our LinkedIn account warm-up, only applied to your email channel.
Why should you warm up your email account?
Warming up your email account protects your deliverability and your sender reputation.
The most common reason cold emails land in spam is sending too much, too fast, from a mailbox with no established sending history. Mailbox providers see a brand new mailbox suddenly sending 100 emails a day and treat it as suspicious by default.
We recommend warming up:
A brand new mailbox before running any campaigns
An existing mailbox that hasn't been used for outreach before
Any mailbox you're about to scale up significantly
How to enable email warmup
You can enable email warmup from the email settings page for any connected mailbox.
Step 1: Go to Settings, then open Email settings.
Step 2: Under Manage settings for, select the mailbox you want to warm up.
If you have multiple connected mailboxes, you'll see them listed as tabs. Each mailbox has its own warmup setting, so you can warm up some and not others.
Step 3: Toggle Email warmup on.
Once enabled, three settings will appear:
Starting emails per day: The number of emails the mailbox will send on day one. Lower starting points (like 5 or 10) are safer for brand new mailboxes.
Daily increase: How many additional emails the mailbox will send each day during warmup. A value of 2 means day two sends 2 more than day one, day three sends 2 more than day two, and so on.
Maximum warmup limit: The cap warmup will ramp up to. Once your mailbox reaches this number, warmup stops increasing and the mailbox holds steady at this volume.
Step 4: Click Save.
We-Connect will start sending at your starting volume and gradually scale up by your daily increase amount until it reaches your maximum warmup limit.
Choosing your warmup settings
The right values depend on how new your mailbox is and how aggressive you want to scale.
For a brand new mailbox, a conservative ramp is safer. For example: start at 5, increase by 2 per day, and cap at 20 or 30. This gives you a couple of weeks of gradual scaling with low risk of triggering spam filters.
For an existing mailbox that's been used for regular email but not outreach, you can start higher. For example: start at 10, increase by 5 per day, and cap at 50 or 100.
Whatever values you choose, warmup tops out at 100 emails per day. If you need to send more than that, sending limits take over once warmup is complete.
Email warmup and sending limits
Email warmup and sending limits work together but serve different purposes:
Warmup controls the gradual ramp-up of a new or recovering mailbox. The maximum warmup limit caps at 100 emails per day.
Sending limits define your day-to-day operational ceiling once the mailbox is warmed up. These can go much higher (up to 2,000 emails per mailbox per day).
Once your mailbox reaches the maximum warmup limit, warmup is complete. From that point on, your sending limits take over as the active ceiling, and you can scale up to your full sending volume.
If you plan to send well above 100 emails per day, set your warmup to ramp up to 100, let it complete, and then rely on your sending limits for higher volume.
When to turn warmup off
Once your mailbox has been actively sending at full volume for a few weeks without deliverability issues, you can leave warmup off. Turning it back on later is fine if you take an extended break from sending or notice deliverability dropping.
If you have any questions about email warmup, contact our support team.