Start with automated warm-up of your email inbox, forget about spam, and smartly improve cold email deliverability before launching outreach campaigns.
98% Inbox Placement
10K+ Emails Warmed
2K+ Happy Users
Email warm up is considered as a process of increasing email sending volume gradually, and generating positive engagement signals such as opens, replies, and clicks. These signals even help email providers like Gmail, Outlook, and Google Workspace to identify your inbox as a trustworthy inbox.
Emails are sent slowly and increase over time, which protects your inbox and maintains uniform deliverability.
Helps in generating real engagement signals that assists Gmail and Outlook to trust your domain and sender identity.
Avoid damaging your sender reputation before even launching any cold email campaigns while protecting it from spam placement and blacklisting.
Sending cold emails without warming up your inbox is one of the fastest ways to damage sender reputation and hurt long-term deliverability.
Botphonic’s email warm-up is designed to be ISP-safe, spam-safe, and provider-compliant.

Email warm-up helps you build sender reputation, improve inbox placement, and safely scale cold email campaigns. It protects your domain, boosts engagement, and ensures long-term deliverability.
Compared to manual or no warm-up, Botphonic’s automated cold email warm-up improves inbox placement, protects sender reputation, and prepares your account for scalable outreach.
| Feature | No Warm-Up | Manual Warm-Up | Automated Cold Email Warm-Up |
|---|---|---|---|
| Inbox Placement | Very Low, often lands in spam | Moderate and inconsistent | High, optimized for primary inbox |
| Sender Reputation | Weak or damaged quickly | Slowly improves over time | Consistently strengthened |
| Time to Warm an Inbox | None (high risk) | Slow and time-consuming | Fast, controlled, and automated |
| Daily Sending Safety | Risky volume spikes | Limited and error-prone | Safe, gradual ramp-up |
| Spam Trigger Prevention | No protection | Minimal control | Smart, human-like sending patterns |
| Positive Engagement Signals | None generated | Inconsistent engagement | Automated replies and interactions |
| Cold Campaign Readiness | Poor and risky | Partially ready | Fully warmed and ready to scale |
Automated warm-up that increases inbox placement, opens, and campaign readiness—safely and efficiently.
Inbox Placement Rate
Increase Email Open Rates
Safer Daily Sending Volume
Faster Cold Campaign Readiness
Email warm-up is the process of gradually increasing your email sending volume while smartly generating positive engagement signals like opens, replies, and clicks. Moreover, it also helps improve cold email deliverability and ensures your emails are landing in the primary inbox.
Email warm-up is important as sending cold emails without warming up your inbox might result in damaging sender reputation, trigger spam filters, and also reduce inbox placement. Warm-up helps in building trust with email providers like Gmail and Outlook.
An email warm-up tool automatically sends low volumes of emails and increases sending gradually while smartly generating engagement signals. It also helps mailbox providers recognize your domain as trustworthy and improves long-term email deliverability.
Yes, but it might be risky. Sending cold emails without email warm-up might result in spam folder placement, low open rates, damaged sender reputation, and also possible domain blacklisting.
Generally, email warm-up takes about 2-4 weeks depending on the inbox age, domain reputation, and daily sending limits. Automated email warm-up tools can safely speed up the process compared to manual warm-up.
Yes, a provider-compliant email warm-up tool is safe for Gmail, Outlook, and Google Workspace. It follows ISP-safe practices and mimics natural human sending behaviour.
During email warm-up, you should start with a low daily sending volume and increase it gradually. Automated warm-up tools manage daily sending limits safely based on inbox reputation.
Stopping email warm-up suddenly can reduce sender reputation over time, especially if you are continuing to send cold emails. Continuous or background warm-up helps manage inbox placement and sender trust.
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