Lumail vs SMTP2GO
Lumail
SMTP2GO
SMTP relay and transactional email API
Lumail and SMTP2GO pricing and feature comparison
Free emails / month
Lumail
3,000
SMTP2GO
200/day
Unlimited subscribers · $0
$0
Paid entry
$20/month, 40,000 included, then $0.60/1,000
$15/month
Pricing basis
Unlimited subscribers; pricing follows email volume
Monthly sending allowance in USD, not subscriber count. Paid overage billed per extra email (quoted per 1,000) up to 3× the plan cap.…
Automation
Graph workflows with triggers, branches, goals, exits, and A/B paths
None native. No visual journey/drip builder or subscriber CRM. Official support recommends Customer.io (and desktop mailing-list apps) for…
AI and developer access
ChatGPT OAuth, MCP, skills, CLI, SDK, REST API, and visual editor
Official remote MCP at https://developers.smtp2go.com/mcp (SMTP2GO-API-Docs): list-endpoints, get-endpoint, search-endpoints,…
Transactional email
Included through API, SMTP, SDK, CLI, and agent tools
Core product. SMTP at mail.smtp2go.com (TLS on 25/2525/8025/587/80; SSL on 465/8465/443) plus REST API v3 at https://api.smtp2go.com/v3/…
Publishing surface
Capture pages and custom web domains; not a general website builder
Not a hosted newsletter publication. API templates (HTML + Handlebars) and a built-in unsubscribe footer for marketing sends. No list…
Choose Lumail if…
- You want one organization for campaigns, graph workflows, capture pages, unlimited subscribers, and transactional API/SMTP that agents can operate (89 MCP tools plus ChatGPT OAuth plugin, CLI, SDK)
- You need a visual editor and graph workflows on every plan rather than sending from code or a third-party mailing-list tool
- You prefer Lumail's 3,000-email free tier and $0.60/$0.40 per 1,000 overages over SMTP2GO's 1,000-email free cap and $1.20–$0.35 per 1,000 paid overages
Choose SMTP2GO if…
- SMTP/API delivery is the whole product, and you want mail.smtp2go.com, dedicated IPs from 100k/month, and phone support without a newsletter UI
- You already store lists in your app or in Customer.io and only need a sending pipe, webhooks, templates, and bounce/suppression tooling
- You need subaccounts, optional SMS (location-priced), email archiving at $0.50/GB/month, or ISO 27001 / ISO 9001-certified delivery infrastructure
Where SMTP2GO is strong
A real alternative, not a straw man.
SMTP2GO is a volume-priced email delivery service (SMTP + REST API + optional SMS) for transactional and bulk sending, not a hosted newsletter or automation platform. People pick SMTP2GO when they need apps, agencies, and IT teams that need SMTP or API delivery with reporting, subaccounts, and human support — and already keep lists and automations elsewhere..
- SMTP relay plus REST API with regional endpoints, automatic SPF/DKIM, 100% delivery SLA, and 30-day money-back
- Phone, live chat, and ticket support on paid plans (Stevie-award positioning); subaccounts for agencies/MSPs
- First-party remote MCP that can execute the API, plus an Agent Skill for sending, and optional SMS on paid plans
Don't trust the table. Run one journey.
Checklists lie by flattening the work. Build one real path: a trigger, a wait, a branch, a goal, an exit. Then open one subscriber and see what actually happened. That tells you more than any feature row.
- 1. Import a small, consented sample. Not the whole list.
- 2. Recreate one campaign and the audience it actually hits.
- 3. Publish one automation with a goal you can measure.
- 4. Fire a test and read every event on one person.
- 5. Compare the weekly work, not the setup afternoon.
Try it on a real send
Keep the whole list. Pay when you send.
3,000 emails free, no card. Rebuild one campaign, one workflow, and one transactional message before you move anyone. If it feels worse than SMTP2GO, stay.
The questions people actually ask
Is Lumail cheaper than SMTP2GO?
Sometimes. Lumail is $0 for 3,000 emails, then $20 for 40,000. SMTP2GO's number only makes sense after you know what they cap: contacts, seats, a daily send limit, or a feature they hide behind a paid plan. Read the honest take above, then price a normal month and a launch month on both pages.
What is the main difference between Lumail and SMTP2GO?
Choose SMTP2GO when the product you are buying is reliable SMTP/API delivery, dedicated IPs, and phone-capable support. Choose Lumail when newsletters, graph workflows, subscribers, and transactional email should live in one organization agents can operate.
Can I migrate from SMTP2GO to Lumail?
Yes. Don't move the whole list on day one. Export a small consented sample, rebuild one campaign and one automation, authenticate your domain, then watch one subscriber go through the run. If that feels right, move the rest.