Mailrelay vs Odoo Comparison
Compare Mailrelay vs Odoo features, pricing, and more.
Last updated: November 2026
Mailrelay
6.1/10
Spanish email and SMS marketing platform with a large free tier, automation, landing pages and transactional email, aimed at small and mid-sized businesses.

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 | M Mailrelay | ![]() |
|---|---|---|
| Scores | ||
| Overall Rating | 6.1/10 | 7.2/10 |
| Analytics | 6/10 | 7/10 |
| Cost | 9/10 | 8/10 |
| Customization | 6/10 | 9/10 |
| Ease of Use | 6/10 | 5/10 |
| Integration | 4/10 | 8/10 |
| Scalability | 6/10 | 7/10 |
| Security | 6/10 | 7/10 |
| Support | 5/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | Contact for pricing | €31/user/mo Standard |
| Estimated cost for 10 users | Free Free | Free One App Free |
| Features | ||
| A/B Testing | Not listed | |
| E-commerce Features | Not listed | |
| Email Marketing | Not listed | |
| Landing Pages | Not listed | |
| Segmentation | Not listed | |
| SMS Marketing | Not listed | |
| Webinars | 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 | |
Mailrelay vs Odoo cost by team size
Mailrelay and Odoo cost the same at every team size we checked.
| Team size | Mailrelay | Odoo |
|---|---|---|
| 1 user | FreeFree | FreeOne App Free |
| 5 users | FreeFree | FreeOne App Free |
| 10 users | FreeFree | FreeOne App Free |
| 25 users | FreeFree | FreeOne App Free |
| 50 users | FreeFree | 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?
MWhy choose Mailrelay
- Higher Cost score (9/10 vs 8/10)
- Higher Ease of Use score (6/10 vs 5/10)
Why choose Odoo

- Higher Integration score (8/10 vs 4/10)
- Higher Customization score (9/10 vs 6/10)
- Better fit for mid-market (8/10 vs 5/10)
Pros & Cons
MMailrelay
Pros
- The free plan allows 80,000 emails a month to 20,000 contacts with open and click tracking, which is far more than most competitors' free tiers.
- A/B testing, segmentation, landing pages, automation and abandoned-cart flows are included even on the free plan.
- Official free WordPress and WooCommerce plugins sync customers, products and carts.
- Data is stored in the EU, and Mailrelay acts as a GDPR Article 28 processor on all accounts.
- SPF, DKIM and DMARC setup and custom tracking domains are available on the free account.
Cons
- There is no native Shopify integration and no official Zapier app; the vendor points users to Make or the API instead.
- The Standard paid plan does not include open and click tracking.
- Monthly plans require a 12-month commitment.
- Reviewers describe the automation as limited compared with larger rivals, and some report bugs and poor support experiences.
- G2 shows an average of only 3.2 out of 5 from a small number of reviews.
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 6.1/10 for Mailrelay. The largest gap is in Integration: 4/10 for Mailrelay and 8/10 for Odoo.
Both are free for 10 users.
Yes, both Mailrelay and Odoo have a free plan.
Odoo is the better fit for mid-market: we rate it 8/10 for them, against 5/10 for Mailrelay.





