How to Choose Email Marketing Software
Deliverability and automation depth matter more than template galleries.
Deliverability is the whole game
An email marketing tool that lands in spam is useless regardless of its UX. Ask vendors for their average deliverability rates and the methodology behind the number. Look for whether they offer dedicated IPs at higher tiers, what their shared IP reputation looks like, and whether they authenticate outgoing mail with SPF, DKIM, and DMARC on your behalf. Send a test campaign to a seed list using a tool like Mail-Tester during your trial. If you are consistently hitting 80 or lower, walk away.
Segmentation must match your data model
Your email effectiveness is directly tied to how precisely you can segment. Map your actual subscriber data fields before evaluating: purchase history, signup source, geographic data, behavioral tags. Then test whether each tool can segment on those exact fields without custom development. Some tools offer rich segmentation only on their own behavioral data — if your key segments come from external data sources, confirm the import and sync capabilities handle that correctly.
Automation complexity vs. team capability
Visual automation builders look impressive in demos. Evaluate whether your team can realistically build and maintain them. Who will own the automation workflow? Do they need developer support for conditional logic? Test building a real automation — a welcome sequence with branching based on a click action — during your trial, without help from the vendor's support team. If you get stuck, that is signal. Complexity you cannot maintain will be turned off or ignored.
List size pricing and growth math
Email marketing tools typically price by subscriber count, send volume, or both. Run the math on where you expect your list to be in 18 months, not today. Some tools have steep price jumps at certain thresholds — a jump from a $50 plan to a $300 plan at 10,000 subscribers is not unusual. Build a three-year cost projection before committing, and factor in the migration cost if you outgrow the tool.