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Everything you need to create, customize, test, install, and manage bulletproof HTML email signatures across all major email clients.
Your first signature, step by step.
Step-by-step walkthrough to design, customize, and preview a bulletproof HTML email signature tailored for your personal brand or team.
Compare Executive, Minimalist, Creative, and Corporate email signature templates. Learn how to select the best layout for your industry and role.
Best practices for formatting job titles, international phone numbers (tel: links), company URLs, and calendar booking links in email signatures.
Learn how to test your email signature in desktop (600px) and mobile (360px) viewports inside the Sig Signature editor before exporting.
Make every detail your own, from Retina images to dark mode.
Complete diagnostic guide to solving blurry photos, giant Outlook logos, circular crop distortion, and unwanted table gaps in email signatures.
Master brand color palettes in email signatures. Learn the 1-accent color rule, WCAG AA contrast standards, and how to avoid rainbow clutter.
How to upload headshots and company logos at 2x Retina resolution with explicit HTML width/height attributes so they never appear blurry or oversized.
Discover which fonts render safely across Outlook, Gmail, and Apple Mail. Master multi-tier fallback stacks to prevent the Times New Roman trap.
Prevent ugly white logo bounding boxes and unreadable text in dark mode across Outlook, Gmail, and Apple Mail with these proven design techniques.
Add verified social media icons, app store badges, calendar buttons, and promotional CTAs to your email signature without triggering spam filters.
From the editor into Gmail, Outlook, Apple Mail, and custom webmail.
Complete instructions for installing your Sig Signature into Google Workspace and personal @gmail.com accounts with zero formatting loss.
Mastering Outlook email signature setup across Windows desktop, Microsoft 365 OWA, and macOS with perfect image rendering and MSO table support.
Technical developer guide to exporting minified, production-grade HTML signatures and integrating them into CRMs, Apple Mail, and custom marketing platforms.
Step-by-step setup for Apple Mail on macOS Sequoia/Sonoma and iOS 18/17. Fix font distortion and learn the shake-to-undo formatting restore trick.
How to install your HTML email signature into Yahoo Mail, Mozilla Thunderbird, ProtonMail, and cPanel Roundcube webmail without broken tables.
Manage team workspaces, roles, plans, and invoices.
How to update your account profile name, upload an account avatar, change your password, and manage security settings in Sig Signature.
Compare Free, Pro, and Team plans on Sig Signature. Unlock unlimited signature slots, custom branding, analytics, and centralized team deployment.
How to update your credit card, download VAT/tax invoices, access the Stripe Customer Portal, and manage plan renewals in Sig Signature.
Centralize your company's email branding. Learn how to invite team members, assign Admin/Member roles, and deploy standardized signatures across your organization.