Mailgun vs Odoo Comparison
Compare Mailgun vs Odoo features, pricing, and more.
Last updated: November 2026

Mailgun
6.8/10
Mailgun is a developer-focused email API and SMTP relay service that apps and businesses use to send, receive, track and validate transactional and bulk email.

Odoo
7.2/10
Odoo is an open-source business suite whose CRM app handles leads, pipelines, calling, and reporting for small and mid-sized companies, with ERP modules available alongside it.
Feature-by-Feature Comparison
| Feature | ![]() | ![]() |
|---|---|---|
| Scores | ||
| Overall Rating | 6.8/10 | 7.2/10 |
| Scalability | 8/10 | 7/10 |
| Ease of Use | 5/10 | 5/10 |
| Customization | 7/10 | 9/10 |
| Security | 8/10 | 7/10 |
| Support | 6/10 | 5/10 |
| Cost | 6/10 | 8/10 |
| Integration | 8/10 | 8/10 |
| Analytics | 7/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $15/mo Basic | €31/user/mo Standard |
| Estimated cost for 10 users | $15/mo Basic | Free One App Free |
| Features | ||
| Email Marketing | Not listed | |
| More features | ||
| Marketing Automation | Not listed | |
| Built-in Calling | Not listed | |
| Collaboration | Not listed | |
| Customer Support Management | Not listed | |
| Lead Management | Not listed | |
| Integrations | Not listed | |
| Sales Automation | Not listed | |
| Opportunity Management | Not listed | |
| Contact Management | Not listed | |
| Reporting & Analytics | Not listed | |
| Mobile Access | Not listed | |
Mailgun vs Odoo cost by team size
| Team size | Mailgun | Odoo |
|---|---|---|
| 1 user | FreeFree | FreeOne App Free |
| 5 users | $15/moBasic | FreeOne App Free |
| 10 users | $15/moBasic | FreeOne App Free |
| 25 users | $15/moBasic | FreeOne App Free |
| 50 users | $15/moBasic | FreeOne App Free |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Mailgun

- Higher Scalability score (8/10 vs 7/10)
- Higher Security score (8/10 vs 7/10)
- Better fit for developers (9/10 vs 6/10)
- Better fit for enterprise (7/10 vs 5/10)
Why choose Odoo

- Higher Customization score (9/10 vs 7/10)
- Higher Cost score (8/10 vs 6/10)
- Better fit for small business (8/10 vs 4/10)
- Better fit for marketing teams (6/10 vs 4/10)
Pros & Cons
Mailgun

Pros
- Reviewers repeatedly praise the REST API and documentation as quick for developers to integrate.
- Deliverability and detailed per-domain searchable logs get strong marks from users.
- SOC 2 Type II and ISO 27001 certification, with 2FA, SAML SSO and AES-256 encryption at rest.
- A low entry price and a free tier of 100 emails a day for testing.
Cons
- It is API-first and complicated for non-technical users, with a dated dashboard where settings and logs can be hard to find.
- Several 2025 reviews report automated account suspensions with little warning.
- Short log retention on lower plans (1 day on Free and Basic).
- Reviewers call it costlier than rivals once volume grows, and inbox placement tools are a separate product.
Odoo

Pros
- The free plan gives unlimited users on a single app, so a team can run the CRM at no license cost.
- CRM data flows natively into Odoo's Sales, Inventory, Invoicing, and Email Marketing apps, so quotes and stock checks happen without third-party connectors.
- Lead tools go beyond the basics, with predictive scoring, quota-based assignment, deduplication, and enrichment.
- It is open source and highly customizable through Studio, the API, or self-hosting.
Cons
- Reviewers often describe the interface and workflows as complex for new users.
- Setup usually needs internal staff or a paid implementation partner.
- Some users report slow performance with large datasets.
- Opinions on support and documentation quality are mixed, and paid support is email-only on weekdays.
Not sold on either?
Frequently Asked Questions
Odoo scores higher on our Marketing criteria: 7.2/10 against 6.8/10 for Mailgun. The largest gap is in Cost: 6/10 for Mailgun and 8/10 for Odoo.
Yes, both Mailgun and Odoo have a free plan.
Odoo is the better fit for small business: we rate it 8/10 for them, against 4/10 for Mailgun.





