In 2026, AI email assistants are becoming standard across major email products. Gmail has fully embraced the Gemini, QQ Mail has launched Agently Mail, enabling AI to autonomously handle tedious tasks like invoice reimbursement and order reconciliation.
But most AI email assistants share one thing in common: they lock you into a specific model, and your data passes through the provider's servers.
ZTmail AI assistant is completely different: No AI vendor lock-in, no data passing through ZoTrus, fully under your control.
You bring your own API key and choose the AI service provider you trust. Your email content travels only between you and your chosen AI provider, ZoTrus never touches it.
Enter a rough idea, and AI generates a complete email draft. Just tell AI "what to write," and AI handles "how to write it." Whether it's a client email, internal announcement, or business proposal, AI generates a first draft based on your needs.
Based on the email received, AI automatically generates a reply draft. You can also input rough replies to points, and AI organizes them into a professional, complete reply. No need to start from scratching. One clicks for a polished response. ZTmail let you choose the model.
AI can polish your email for more professional language, shorten it for conciseness, expand it for completeness, or proofread it for accuracy. Some AI providers also support tone matching, learning and mimicking your writing style. Your content, optimized by your AI.
One-click translation to multiple languages. You can also translate foreign emails and reply in Chinese draft, then ask AI to translate to English for sending, much more convenient than copying and pasting between your email client and AI service, and more contextually accurate.
One-click summary of long emails and long threads. Quickly grasp key points without reading word by word.
Automatically identifying meeting times, task deadlines, and action items from emails, directly extracted into your calendar. Never miss important dates.
This is one of the AI assistant's most distinctive capabilities. In 2026, AI-generated phishing emails accounted for 86% of all phishing emails, grammatically flawless, contextually relevant, and far harder to detect with the naked eye than traditional "look for typos" approaches. The AI assistant is the critical defense against this new threat:
When suspicious emails are detected, AI displays security warnings at the top. Detection capabilities depend on your chosen AI provider.
One-click translation of foreign emails into your language. You can also reply in professionally written English, no more switching back and forth between your email client and AI services.
ZTmail AI assistant has one fundamental difference from all competitors: you freely choose your AI provider.
Your AI requests go directly from your computer to your chosen AI provider, do not pass through any ZoTrus server. ZoTrus never sees your email content or your AI conversations.
Other AI email assistants typically require uploading email content to their cloud for processing. ZTmail doesn't do this, we only provide the tool, we never touch your data.
One unique setting: whether to allow S/MIME encrypted email decryption for AI processing. No other AI assistant can offer this choice. There are two advantages here: first, you can prevent AI from accessing your encrypted data; second, you can allow AI to analyze decrypted encrypted emails, while other AI assistants are simply unable to process ciphertext.
You choose the model. You manage your keys. The AI assistant works for you.
ZTmail AI assistant is a tool, not a decision-maker. All AI-generated drafts and summaries should be reviewed before sending or acting upon. The combination of automated convenience and your judgment is the most efficient way to work.
You choose the model. You manage your keys. Your email, your AI, your choice.