Email Warmup
New domains and IPs have no reputation with mailbox providers. Blanketcat's warmup service gradually builds trust by sending and receiving real email at controlled volumes.
Add a domain to the warmup service with your relay IP and SASL credentials. Choose a warmup mode based on how aggressively you need to build reputation. The service handles the rest — sending and receiving email across two independent sources to establish your domain and IP as legitimate senders.
Register your domain with relay IP and SASL credentials. Credentials are auto-resolved from your DNS and MTA configuration. MX records must point to the warmup service before activation.
Select from six warmup modes based on your timeline and risk tolerance. Start conservative with maintenance or go aggressive with quadruple. Change modes at any time.
Warmup status is displayed per domain on your domain detail page. Track Source A and Source B allocations and adjust modes as your reputation grows.
Six modes give you precise control over sending volume. Each mode allocates emails across two independent sources for broader reputation building.
| Mode | Source A | Source B | Total Range | Best For |
|---|---|---|---|---|
| Disabled | 0 | 0 | 0/day | Pausing warmup |
| Maintenance | 100 | 400 | 100 – 400/day | Keeping established domains active |
| Normal | 250 | 2,500 | 250 – 2,500/day | Standard ramp-up for new domains |
| Double | 500 | 5,000 | 500 – 5,000/day | Accelerated timeline |
| Triple | 750 | 7,500 | 750 – 7,500/day | Time-sensitive launches |
| Quadruple | 1,000 | 10,000 | 1,000 – 10,000/day | Maximum volume building |
Warmup uses two independent email sources to build reputation from multiple angles simultaneously.
Allocation may be lower than listed if global capacity is exhausted. Provides diversified sending patterns for broader reputation signals.
Always receives its full allocation regardless of global capacity. Guarantees consistent warmup volume even under load.
Full control over your warmup domains from the Blanketcat dashboard or API.
Build reputation before you send your first real campaign.
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