Koltrix
Startups
Email for Developer-Tool Startups: Keys, Changelogs and Docs
Developers ignore marketing email but read messages that save them from outages. The emails a dev-tool startup should send, how to write them, and what to skip.
5 min read
Blog · Startups
Startups
Email for founders and SaaS teams: onboarding and lifecycle mail, trials, churn, and doing more with a small team.
StartupsTwo-Sided Marketplace Emails: Buyers, Sellers and Disputes
Marketplaces email two audiences about the same events. How to map messages for buyers and sellers, relay conversations, handle disputes and route replies.
5 min read
StartupsEmail for EdTech Startups: Planning Around the School Calendar
EdTech email follows the school year: back-to-school bursts, quiet summers, renewal season and several audiences. How to plan sends, volume and tone around it.
4 min read
StartupsEmail for Health-Tech Startups: Practical Privacy Habits
Health-tech teams email patients, clinicians and partners. Practical habits that keep sensitive details out of inboxes, with a clear note on what needs counsel.
5 min read
StartupsEmail Operations for Fintech Startups: Clarity and Audit Trails
Money-related email needs precise copy, consistent senders and records you can find later. Operational habits for fintech startups, from notices to phishing.
5 min read
StartupsData Export and Account Deletion Emails Done Right
Export-ready notices, deletion warnings and final confirmations are the last emails a customer gets from you. How to write them so nothing is lost by surprise.
5 min read
StartupsCustom-domain email for indie SaaS
One to three people shipping a product need mail on their own domain, a way for the app to send, and somewhere replies land. What it costs and how to set it up.
2 min read
StartupsTeam Invite Emails: Getting the Second Seat Activated
In B2B SaaS the second active user often decides whether an account sticks. How to write invite emails, reminders and expiry rules that get teammates in.
5 min read
StartupsInvoice and Receipt Emails: Small Details That Cut Billing Tickets
Most billing tickets start with a confusing invoice email. The fields to include, who should receive it, and why the reply address matters more than design.
4 min read
StartupsReferral Program Emails: Asking at the Right Moment
Ask for referrals right after a customer succeeds, not at signup. The three emails a referral program needs, when to send each, and what to avoid.
4 min read
StartupsPlain-Text vs Designed Emails for SaaS Lifecycle Mail
Plain text feels personal and renders everywhere. Designed HTML suits receipts and digests. Which lifecycle emails belong in which format, and why.
4 min read
StartupsReactivating Dormant Paid Accounts Before They Cancel
Some customers keep paying but stop logging in. How to spot dormant accounts, what to send the admin, and why offering a downgrade can save the relationship.
5 min read