Overview

TrulyInbox automates the process of warming up email accounts by gradually increasing sending volume, marking messages as important, and generating realistic replies to build sender reputation. It supports major email service providers including Gmail, Outlook, Yahoo, Zoho, and more via SMTP or OAuth. The platform provides AI-generated warmup content for 50+ industries in 12 languages, 3 warmup strategies, deliverability intelligence with ESP-level analytics, and account health monitoring. It operates on a 2:1 warmup ratio (2 warmup emails per 1 cold email) and offers a 40,000+ inbox network with 96%+ average deliverability. Designed for sales teams, marketers, agencies, and businesses scaling cold email outreach, with unlimited email accounts on all paid plans and volume-based pricing.

Key Features

Automated Warm-Up

Simulates human-like email interactions such as opens, replies, and importance marking to improve sender reputation.

Customizable Schedules

Allows users to set personalized warm-up parameters including email volume, reply rates, and ramp-up speed.

Deliverability Score

Provides real-time insights into inbox placement and sender reputation across connected email accounts with ESP-level analytics and 90-day historical data.

Multiple Email Opens

Automatically opens emails multiple times to mimic genuine recipient engagement.

Integration Support

Compatible with various email service providers like Gmail, Outlook, Yahoo, Zoho, and others via SMTP or OAuth.

Reporting Dashboard

Tracks warm-up performance metrics including inbox vs. spam placement, open rates, and reply rates.

AI-Generated Warmup Content

Generates industry-specific warmup content for 50+ industries in 12 languages to simulate realistic conversations.

Three Warmup Strategies

Offers multiple warmup approaches tailored to different sending patterns and deliverability goals.

API Access

Full REST API and webhook access included in all plans for programmatic inbox management, real-time score updates, and integration with outreach tools.

White-Label Options

Scale+ plans include white-label and co-brand options with iframe widgets and custom UI APIs for agencies and platforms.

Smart Reply Network

Conversational warm-up across a network of 40,000+ real inboxes with 24/7 spam rescue capabilities.

Bulk Inbox Management

Connect, pause, and resume hundreds of inboxes with a single API call for agency-scale operations.

Pros & Strengths

✓

User-Friendly Interface: Simple setup process suitable for users with varying technical expertise.

✓

Volume-Based Pricing: Pay for warmup emails sent, not per account connected. Unlimited email accounts on all paid plans with predictable costs as you scale.

✓

Flexible Plans: Multiple pricing tiers cater to different business sizes and needs, from free to enterprise-level volumes with annual discounts.

✓

Customizable Warm-Up: Ability to tailor warm-up schedules, reply rates, and ramp-up speed to match specific sending patterns.

✓

Integration Capabilities: Supports a wide range of email service providers (Google, Microsoft, Yahoo, Zoho, SMTP) and outreach tools via API.

✓

7-Day Free Trial: All paid plans include a 7-day free trial with no credit card required.

✓

API & White-Label Ready: Full API access on all plans, with white-label options for agencies and SaaS platforms on Scale+ plans.

✓

High Deliverability Network: 40,000+ active inboxes warming on day one with 96%+ average deliverability across the network.

Cons & Tradeoffs

⚠

Limited Free Plan: The free tier offers minimal features (1 account, 10 daily emails) which may not suffice for larger operations.

⚠

Basic Reporting on Lower Tiers: Advanced analytics, ESP-level breakdowns, and domain-level reputation trends limited to higher plans.

⚠

Customer Support Concerns: Some users have reported subpar customer support experiences, including slow response times.

⚠

Trustworthiness Issues: Questions raised about the authenticity of some user testimonials on marketing materials.

⚠

No Monthly Billing Discount: Monthly billing is significantly more expensive than annual (e.g., Growth plan $99/mo vs $84/mo annual).

Known Limitations

• Free plan restricted to a single email account and low daily volume

• Advanced analytics and domain-level reporting not available on lower tiers

• Customer support quality may vary by plan tier

• Monthly billing costs 15-20% more than annual commitments

• White-label and custom SLA features only on Scale+ enterprise plans

Pricing & Plans

Model: freemium

USD22 /month

Offers volume-based pricing with unlimited email accounts on all paid plans. Free plan: $0/month (1 account, 10 daily warmup emails). Paid plans (annual billing): Starter $22/mo ($264/yr, 100 daily warmup emails), Growth $84/mo ($1,008/yr, 1,000 daily warmup emails), Scale $169/mo ($2,028/yr, 3,000 daily warmup emails), Scale+ 5K $407/mo, Scale+ 10K $765/mo, Scale+ 20K $1,403/mo. Monthly billing available at higher rates (Starter $29/mo, Growth $99/mo, Scale $199/mo). All paid plans include unlimited accounts, API access, and 7-day free trial (no credit card). Warmup runs on 2:1 ratio (2 warmup emails per 1 cold email).

✓ Free Plan ✓ Free Trial

Pricing verified: 2026-08-20

Similar Sales Tools

Abstract API

by Abstract API

Developer API suite for email, phone, and IP verification plus company enrichment to clean lists and block fraud.

subscription

AeroSend

by AeroSend

AeroSend provides private, isolated email infrastructure for cold outreach at scale, featuring aged IPs, dedicated servers, dynamic IP rotation, and domain burn alerts to maximize deliverability.

custom

Allegrow

by Allegrow

Allegrow is an email deliverability platform that monitors sender reputation, analyzes spam rates, and provides automated safety measures to improve inbox placement for sales and marketing teams.

freemium

TrulyInbox