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Understanding autowarmup in Sendigram

Email autowarmup is an automated process designed to gradually increase the volume of emails sent from a new or rarely used email address or domain. Its primary goal is to build a positive sender reputation and ensure your messages land in the "Inbox" rather than the "Spam" folder.

Why Autowarmup is Essential

Starting a mass mailing campaign from a fresh domain can often lead to immediate blocks. Here is why Sendigram uses an automated approach:

Avoid Spam Filters: Email providers are suspicious of new accounts that suddenly send thousands of emails. Warmup helps you earn their trust.
Build Reputation Naturally: Our system mimics organic, human-like activity by eliminating suspicious spikes in volume that could damage your reputation.
Maximize Engagement: A "warmed" address reaches the inbox more often, leading to higher open rates and better campaign results.
Protect Your Investment: Proper warmup ensures that your marketing efforts and lead generation costs aren't wasted due to low deliverability.

How it Works Behind the Scenes

Sendigram manages the warmup for every unique combination of your IP address and domain. The system monitors your delivery statistics in real-time and automatically adjusts your daily limits.

1. Smart Limits and Speed

The system starts with a safe daily limit—typically 100 emails per day. As long as your metrics remain healthy, the system increases this limit daily based on a "speed coefficient".

2. Reputation Monitoring

We track several key health metrics to determine your progress:

Hard Bounces: Emails that couldn't be delivered due to permanent reasons.
Spam Complaints: When recipients manually mark your email as spam.
Open Rates: How often users are actually engaging with your content.

3. Safety Modes

To protect your domain from being blacklisted, Sendigram uses "Safety Modes" that trigger if your reputation starts to dip:

Mode	What it means
Normal	Your reputation is healthy; limits grow or adjust based on your performance.
Downgrade	If complaints or bounces increase slightly, the system automatically cuts your daily limit in half to protect you.
Incident	If critical issues are detected, the system pauses sending for 48 hours to allow your domain to "cool down".
Restoring	After a pause, we resume sending at minimum levels for 7 days to ensure stability before growing again.

What You Need to Do

The best part about Sendigram’s autowarmup is that it is automatic. As a user, your main focus should be:

Sending Quality Content: High engagement (opens and clicks) helps the system increase your limits faster.
Maintaining Clean Lists: High bounce rates will trigger "Downgrade" or "Incident" modes, slowing down your progress.

By following these simple guidelines, Sendigram will safely scale your outreach to thousands of emails while keeping your domain's reputation pristine.

Still have questions?