Understanding Email Warmup & Deliverability Protection
If you've recently launched your cold email campaigns through ListKit and noticed that each account is only sending a small number of emails daily, this is intentional and strategic. The controlled ramp-up process is a critical deliverability protection measure that ensures your campaigns achieve long-term success.
The Email Account Ramp-Up Process
When your campaigns first launch, we implement a methodical sending volume progression:
Initial Sending Rate: Each email account begins at just 2 emails per day
Gradual Increase: The daily sending volume increases by 2 emails each day
Full Capacity Timeline: Accounts reach optimal sending capacity in approximately 11 days
Maximum Volume: Each account caps at 22 emails per day for sustained deliverability
Why This Approach Matters
This carefully controlled ramp-up strategy serves several critical purposes:
Inbox Placement Protection
New email accounts that immediately send high volumes of outreach appear suspicious to email service providers (ESPs). By gradually increasing volume, we establish a natural sending pattern that mimics legitimate business communication.
Domain Reputation Building
Your sending domains develop a positive reputation through this gradual process, significantly increasing the likelihood that your messages reach the primary inbox rather than spam or promotions folders.
Account Longevity
We've determined through extensive testing that 22 emails per day represents the optimal maximum for sustained deliverability. Exceeding this threshold substantially increases the risk of having your accounts flagged or restricted by email service providers.
Deliverability Optimization
This approach allows email service providers to become familiar with your sending patterns before you reach full volume, establishing trust and preventing common deliverability issues that plague most cold email campaigns.
What This Means For Your Campaign
During this initial period:
Your campaign is actively building sending reputation
Each day your volume capacity automatically increases
The system is working as designed - not experiencing limitations
No action is required from you during this process
Best Practices During Ramp-Up
While your accounts warm up:
Monitor responses to gauge early campaign performance
Review initial results to prepare for potential message refinements
Be patient as your campaign reaches full capacity
Avoid manual sending from these accounts during the warmup phase
What Happens Next
After the 11-day ramp-up period, your accounts will maintain the optimal sending cadence of 22 emails per day. This volume balances maximum reach with optimal deliverability protection, ensuring your campaigns generate results consistently over time.
There is nothing to do on your end here, just sit back and let us take care of the email accounts!
By following this proven approach to email account management, your campaigns will establish the foundation for sustainable outreach success while avoiding the deliverability issues that undermine most cold email initiatives.