Koltrix
Guides
Consolidating Several Email Vendors Into One
Mailbox host, sending API, help desk, newsletter tool: when merging them pays off, which to move first, how to clean up DNS, and when to keep a specialist.
5 min read
GuidesBudgeting for an Email Migration: Time, Tools and Risk
An email migration costs more than the new subscription. A worksheet for the hours, overlap fees, archive storage, tools and risk buffer to plan for up front.
5 min read
GuidesSmall Nonprofit Email: Donor Receipts, Volunteers and a Tight Budget
How a small nonprofit can set up email that outlasts volunteer turnover, sends donor receipts reliably, keeps announcements separate and fits a small budget.
5 min read
ComparisonsSelf-Hosting Email vs a Managed Provider: An Honest Cost Look
Running your own mail server buys control and costs time: reputation, patching, spam filtering, on-call. A fair look at when self-hosting makes sense.
5 min read
GuidesHidden Costs in a Multi-Vendor Email Stack
Mailbox host, sending API, help desk, newsletter tool. Subscriptions are the visible part. What a split email stack costs in time, DNS and lost replies.
5 min read
GuidesEstimating Transactional Email Costs as You Grow
A practical method for forecasting how many transactional emails your product will send per month, and what that volume will cost as your user base grows.
4 min read
GuidesPer-User vs Per-Workspace Email Pricing: Doing the Math
Per-user and per-workspace pricing look similar at three people and diverge fast after that. A worked way to compare the two models for your own team size.
4 min read
GuidesWhat Business Email Really Costs a Five-Person Startup
Mailboxes are only one line on the bill. A framework for adding up what email really costs a five-person startup, including sending, support tools and time.
4 min read
- Comparisons
Amazon SES vs a Managed Email API: Trade-Offs for Small Teams
Amazon SES is famously inexpensive per message. A managed email API costs more and does more for you. How to weigh price against engineering time.
4 min read