mailX vs Speech To Markdown: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of mailX and Speech To Markdown — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
mailX
mailX (themailx.com)
Web-based email deliverability and network diagnostics: DNS, SPF, DKIM, DMARC, MX, blacklist and SMTP checks for domains.
Key features
- DNS and IP Lookup: Performs instant DNS and IP lookups for domains to reveal A, AAAA, NS and related records and surface configuration problems that affect mail delivery.
- SPF, DKIM and DMARC Validation: Parses and validates SPF records, DKIM selectors and DMARC policies to identify misconfigurations, missing records, or syntactic issues that break authentication.
- MX and SMTP Inspection: Checks MX records and actively probes SMTP servers to confirm connectivity, banner responses, TLS negotiation and common SMTP errors that cause delivery failures.
- Blacklist and Reputation Checks: Queries common public blacklists and reputation sources to report whether sending IPs or domains are listed and explains implications for delivery.
- Email Deliverability Report: Generates an aggregate deliverability analysis with actionable recommendations to fix authentication, DNS or SMTP configuration problems.
- MCP Server & Agent Skills Integration: Provides an MCP server and a published skills catalog (SKILL.md) enabling AI agents (e.g., Claude skills) to execute automated diagnosis and remediation workflows using mailX tooling.
- Web-based DNS and IP lookup
- MX record inspection and analysis
- SPF record parsing and validation
- DKIM signature verification
- DMARC policy and alignment checks
- Blacklist status lookup for IPs/domains
- SMTP server connectivity and configuration checks
- MailX MCP server for executing tools remotely
- Agent Skill catalog (SKILL.md) for Claude/agent integrations
- Documentation and installation guide for MCP server (themailx.com/mcp/docs)
Best for
- Pre-send Campaign Validation: Verify SPF/DKIM/DMARC and MX records for a sending domain before launching an email campaign to reduce bounce and spam-folder placement.
- Deliverability Troubleshooting: Diagnose why a specific domain or IP is failing authentication or being rejected by recipient servers by inspecting SMTP responses and auth records.
- Blacklist Monitoring and Remediation: Regularly check sending IPs and domains against public blacklists and obtain guidance to delist or remediate reputation issues.
- CI/CD Configuration Checks: Integrate DNS and SMTP validations into deployment pipelines to ensure new services or mail servers are configured correctly before production rollout.
- Automated Agent-driven Fixes: Use the mailX MCP server and published agent skills to let AI assistants run diagnostic workflows and suggest or apply fixes for deliverability problems.
- Integration with Support Workflows: Provide support teams with one-click diagnostics to collect domain, DNS and SMTP data to expedite incident resolution and configuration guidance.
- Diagnose and fix email deliverability issues for domains and sending infrastructure
- Pre-send checks for marketing/transactional email campaigns to reduce bounces and spam placement
- Automated domain health checks integrated into CI/CD or monitoring pipelines
- Enable AI agents (e.g., Claude) to perform live email deliverability diagnostics via MailX Skills and MCP server
- Investigate blacklist listings and SMTP connectivity problems during incident response
Speech To Markdown
xajik
Free, 100% local macOS menu-bar app that turns speech into structured markdown using whisper.cpp and any local LLM.
Key features
- 100% Local Pipeline: Runs whisper.cpp for speech-to-text and any local LLM server for structuring — no cloud calls and no API keys required.
- Global Dictation Hotkey: Press ⌘⌥] in any app to have the transcript typed straight at your cursor, works in Terminal, browser, Slack, and more.
- Agent Mode Live Structuring: A floating capsule streams your voice through the LLM into a real-time Markdown, plain text, or HTML document.
- One-Line Install: A single curl-piped script installs xcodegen, whisper-cpp, and ffmpeg via Homebrew, then builds the app from source into /Applications.
- iOS Companion: A fully offline iPhone/iPad app that uses Apple Intelligence on iOS 26+ (iPhone 15 Pro and up).
- Multiple Output Formats: Format, edit, or append the LLM output as Markdown, plain text, or HTML from a single control panel.
- Send-Now Flush: The Send (⏎) control flushes the current buffer to the LLM immediately instead of waiting for the pause/word-count threshold.
- Model Picker: Download and swap Whisper models from Settings — Base (~150 MB) is a good starting point.
Best for
- Private Meeting Notes: Dictate meeting recaps on a Mac with sensitive content that must never leave the device.
- Voice-Driven Coding Comments: Speak function docstrings or PR descriptions into your editor at the cursor via Global Dictation.
- Structured Journaling: Use Agent Mode to ramble freely and get a clean, headed Markdown document out in real time.
- Offline Field Notes on iOS: Capture voice notes on an iPhone with no signal, structured into markdown using on-device Apple Intelligence.
- Slack / Email Long-Form: Dictate long replies straight into Slack or Mail without opening a separate transcription tool.