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A logo that fills the screen on a phone, spacing gone, links turned blue, icons turned into plain links: why an email signature changes between your mail app and the recipient's, and how to build one that arrives the way you made it.

An address belongs in your email signature when US commercial email needs a postal address, when a UK company shows its registered office, or when people visit you. When an address belongs in your signature, which one to use, and how to add it on its own line.

Pick info@ or sales@ in Outlook's From field and the email goes out with your own signature, or none. Why Outlook does this, and three ways to give a shared mailbox its own signature in new Outlook, classic Outlook and Outlook on the web.

30 New Year out of office messages to copy: professional, short, funny, warm, office closed and back-to-work replies, with the 2027 dates and a signature line.

On October 8, 2026, Google Cloud announced coworker agents: Gemini agents with their own Workspace account and an @agents.company.com email address. What Google said, what it left open about signatures, and how to get a coworker agent's email signature ready before it sends.

An agent or script on your own computer sends email without your signature. One command, npx signatoro get, prints your saved signature for Claude Code, Codex, OpenClaw or a cron job to append. Setup, the rule to paste, and what each exit code means.

Add a Black Friday or Cyber Monday sale line to everyone's email signature at once, with 20 lines to copy, the 2026 dates, and a plan to take it off on Tuesday.

Outlook for iPhone and Android now lets you pick a signature image from OneDrive, not only from your photo library. What Microsoft changed, when, how to use it, and how to check the logo reaches the people you email.

30 Christmas out of office messages to copy: professional, short, funny, warm, office closed and UK versions, with the 2026 dates and a holiday signature line.

Since October 27, 2026, ChatGPT can connect to iCloud Mail on every plan. What OpenAI shipped, how the app-specific password works, where your iCloud signature lives, and how to make sure email ChatGPT writes from your iCloud address ends with your signature.