mailhyve

Writing

The blog

Practical pieces on the parts of email nobody else writes about — formats, subject lines, HTML rendering, and deliverability.

Most writing about email online is either pure marketing — a vendor explaining why their sending platform is the right one — or a thin SEO listicle stitched together from the same five sources. The pieces below try to be different. Each one comes out of a specific problem we (or someone using the tools) ran into and had to actually solve: an Outlook rendering quirk that broke a launch email, a subject-line decision that needed a real data point instead of vibes, a question about whether two formats for a business email are actually different in practice.

The categories below sort the writing roughly by what you might be trying to do. Format pieces cover how to name an address, what the common patterns are, and which ones survive contact with real recipients. Rendering pieces are the technical guts — HTML quirks across Gmail, Outlook, Apple Mail, and the mobile clients, with the specific fixes that keep your email looking like the design. Subject lines covers open rates, length, and the small craft of writing the line that determines whether the rest of the email gets read at all. Strategy covers the higher-altitude decisions — when temp mail is the right answer, what a professional email address actually signals, and how naming conventions hold up as a company scales.

Every piece is written to be read on its own — no funnels into a paid product, no gated downloads, no "subscribe to continue." If you find one useful, the most helpful thing you can do is share the specific link with someone who needs it, or use one of the free tools the piece references. The blog and the tools are funded by the same single ad slot, so engagement with either keeps the whole thing free.

Guides·6 min·

Follow-up emails that actually get replies

The two-sentence rule, the post-meeting recap, the break-up email — five patterns that separate follow-ups that move threads forward from ones that get muted.

Guides·7 min·

ChatGPT email prompts that actually work

Why one-line prompts produce generic emails — and the five-input structure that gets a usable draft on the first try. Before-and-after examples included.

Guides·5 min·

The one-page guide to a student email signature

What to include, what to skip, and the three-line format that works for undergrads, grad students, and applicants emailing professors.

Guides·8 min·

Real estate email signature compliance, state by state

License number requirements, REALTOR® usage, brokerage disclosure rules, and the format that satisfies California, Texas, Florida, and New York.

Guides·6 min·

Mac Mail signature setup: the one checkbox you're missing

Apple Mail breaks more HTML signatures than any other client. The fix is a single checkbox. Step-by-step install for macOS, iOS, and iPadOS.

Guides·4 min·

How to pick a professional email address

Twelve worked examples and the tradeoffs between your full name, initials, and a custom domain — for job seekers, freelancers, and small teams.

Guides·5 min·

Every email address format, ranked by use case

first.last vs flast vs firstlast — when each one wins. A use-case-first guide for sales, support, internal comms, and transactional mail.

Guides·6 min·

Gmail vs Outlook vs Proton: which to pick

A practical comparison for personal, business, and privacy use. Current pricing, storage, calendar, encryption — what actually differs.

Guides·4 min·

Subject lines that actually get opened

Five widely-used subject-line patterns, with examples and the reasoning behind why each one works — plus the formats to avoid.

Guides·4 min·

The 7 most common business email formats (and which to pick)

first.last vs flast vs first_last — a quick guide to picking an email pattern that scales with your team and looks intentional.

Guides·5 min·

Naming conventions for business email

How to pick a scheme for a team of 5, 50, or 500. Role-based aliases, shared inboxes, and the migration paths that don't break.

Marketing·6 min·

How long should an email subject line be in 2026?

Mobile clients cut subject lines at 30 characters. Desktop shows 50–60. Here's how to find the sweet spot for your audience.

Guides·3 min·

Generator vs temp mail: which one do you need?

The actual difference between an email generator and a temporary inbox service — and which problem each one solves.

Engineering·8 min·

The 5 Outlook quirks that break your HTML email

Tables, VML, inline styles, font fallbacks, and image blocking. Here's how to ship HTML that doesn't fall apart in Outlook.