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Mailrelay vs Odoo Comparison

Compare Mailrelay vs Odoo features, pricing, and more.

Last updated: November 2026

M

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 logo

Odoo

7.2/10

Winner

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
Odoo logo
Odoo
Scores
Overall Rating6.1/107.2/10
Analytics6/107/10
Cost9/108/10
Customization6/109/10
Ease of Use6/105/10
Integration4/108/10
Scalability6/107/10
Security6/107/10
Support5/105/10
Pricing
Free planYesYes
Cheapest paid planContact for pricing€31/user/mo
Standard
Estimated cost for 10 usersFree
Free
Free
One App Free
Features
A/B TestingNot listed
E-commerce FeaturesNot listed
Email MarketingNot listed
Landing PagesNot listed
SegmentationNot listed
SMS MarketingNot listed
WebinarsNot listed
More features
Marketing AutomationNot listed
Built-in CallingNot listed
CollaborationNot listed
Customer Support ManagementNot listed
Lead ManagementNot listed
IntegrationsNot listed
Sales AutomationNot listed
Opportunity ManagementNot listed
Contact ManagementNot listed
Reporting & AnalyticsNot listed
Mobile AccessNot listed

Mailrelay vs Odoo cost by team size

Mailrelay and Odoo cost the same at every team size we checked.

Team sizeMailrelayOdoo
1 userFreeFreeFreeOne App Free
5 usersFreeFreeFreeOne App Free
10 usersFreeFreeFreeOne App Free
25 usersFreeFreeFreeOne App Free
50 usersFreeFreeFreeOne 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?

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Why choose Mailrelay

  • Higher Cost score (9/10 vs 8/10)
  • Higher Ease of Use score (6/10 vs 5/10)

Odoo logo
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

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Mailrelay

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 logo
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.

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