Combell E-mail vs Mailo

Compare Combell E-mail and Mailo on capabilities, jurisdiction, assurance, and fit for European buyers.

Both listed as alternatives to: Gmail, Microsoft 365, Outlook.com

Combell E-mail

Belgium· Email Services

Needs review

Shortlist when you need Benelux domain mail with phone-first support, Hosted Exchange on Combell infrastructure, or Microsoft 365 sold with local onboarding from a Belgian host. Skip when you need zero-access / E2EE mail or a vendor that never routes collaboration data through Microsoft — consider Mailfence, Proton Mail, or Tuta instead.

EU-operated (Belgium)Benelux data centres (claimed)Hosted ExchangeMicrosoft 365 resellerISO 27001 (claimed)24/7 local support

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Mailo

France· Email Services

Needs review

Shortlist Mailo when you want French-entity freemium webmail with classic IMAP/EAS clients, integrated calendar/cloud, supervised Mailo Junior for kids, or Pro custom domains for SMEs—without US Big Tech accounts. Skip when you need default zero-knowledge E2EE, open-source/self-host, or a full Workspace-class suite; consider Tuta, Proton Mail, or Infomaniak kMail instead.

France-hosted (claimed)Freemium webmailMailo JuniorIMAP / ActiveSyncPro custom domainsOptional PGP (server-side)

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Highlighted rows differ between the two products.

Combell E-mail vs Mailo: Snapshot
Feature	Combell E-mail	Mailo
Country of origin	Belgium	France
Category	Email Services	Email Services
Open source	No	No
Self-hosted	No	No
Headquarters	Belgium	France
Legal entity	Combell nv (Skaldenstraat 121, 9042 Ghent; CBE 0541.977.701)	MAILO SAS (capital €75,000; RCS Créteil 851585547; VAT FR44851585547)
Governing law	Belgium / EU GDPR	French law (terms of use)
US parent / control	No known US parent	No known US parent
CLOUD Act exposure (indicative)	Medium	Medium
Hosting / residency	Basic and Hosted Exchange: Combell-operated Tier 3+ Benelux data centres (Belgium/Netherlands claimed for Exchange mail). Microsoft 365 SKUs: Microsoft cloud (US-parented provider). Flexmail and other team.blue sister tools may process campaign data. Public named subprocessor list not published — request via data protection contact. Privacy policy allows third-party processors and SCCs for some non-EU manufacturers.	Vendor states user personal data and content are stored/processed on servers in France; specialised French host centre (who-we-are); website hosted by Ecritel, Arradon, France. Named third parties: Verifone/Paybox (payment email), PayPal option, Gandi/Netim (domains), Sirdata + ad agencies (free-tier ads), optional Rainbow video and OnlyOffice. Full mail DC/backup subprocessor list not published.
Summary	Belgian professional email hosting from Combell (team.blue): domain Basic IMAP mailboxes, Hosted Exchange, Microsoft 365 reseller options, spam protection, backups, SMTP relay, and 24/7 Benelux support.	French freemium webmail and Mail&Cloud suite (MAILO SAS): email, calendar, cloud disk, Mailo Junior for children, and Pro custom domains—hosted in France, proprietary SaaS.
Tags	email-hosting exchange microsoft-365 belgium gdpr smb benelux imap	privacy freemium saas family french webmail productivity

At a glance: Combell E-mail vs Mailo
At a glance	Combell E-mail	Mailo
HQ	Ghent, Belgium (Combell nv)	Not listed
Group	team.blue (European multi-brand)	Not listed
Product type	Hosted domain email (SaaS)	Not listed
Open source	No	No (proprietary MailObject®)
Self-host	No	No
Main SKUs	Basic IMAP · Hosted Exchange · Microsoft 365 · SMTP relay · Flexmail	Not listed
Commercial model	Paid subscription plans; money-back guarantee advertised	Not listed
HQ / entity	Not listed	MAILO SAS, France (RCS Créteil 851585547)
Hosting (claimed)	Not listed	Servers in France; website host Ecritel (FR)
Model	Not listed	Freemium SaaS (Free / Premium / Pro / Junior / Edu)
Encryption default	Not listed	TLS + optional server-side PGP (not ZK E2EE)

Key capabilities: Combell E-mail vs Mailo
Key capabilities	Combell E-mail	Mailo
EU-operated (Belgium)	Yes	Not listed
Benelux data centres (claimed)	Yes	Not listed
Hosted Exchange	Yes	Not listed
Microsoft 365 reseller	Yes	Not listed
ISO 27001 (claimed)	Yes	Not listed
24/7 local support	Yes	Not listed
France-hosted (claimed)	Not listed	Yes
Freemium webmail	Not listed	Yes
Mailo Junior	Not listed	Yes
IMAP / ActiveSync	Not listed	Yes
Pro custom domains	Not listed	Yes
Optional PGP (server-side)	Not listed	Yes

Combell E-mail

Domain Basic mailboxes (IMAP/POP3/SMTP)
Create addresses on your own domain with multi-device sync, client compatibility (Outlook, Apple Mail, mobile), and browser webmail. Published storage tiers include 5 GB, 50 GB, and 100 GB Basic plans with spam/antivirus filtering and daily mailbox backups. Suited to SMEs that need professional mail without Exchange collaboration features.
Hosted Exchange with calendars and push
Exchange mailboxes add shared calendars, task lists, meeting-room booking, and direct push notifications, with free transfer help for existing Exchange setups. Combell states Exchange mail runs in Belgium and Netherlands data centres. Choose this when teams need Outlook-style groupware without the full Microsoft 365 app suite.
Microsoft 365 reseller with local setup
Business and Enterprise Microsoft 365 packages combine Exchange mail with Office apps, OneDrive, Teams, and related Microsoft cloud services. Combell differentiates with DNS/mailbox configuration service and 24/7 support in local languages rather than Microsoft-only helpdesks. Mailbox and file data on this path are processed by Microsoft, not only on Combell hardware.
Spam filtering, antivirus, and daily backups
Basic and Exchange product pages include automated spam and virus scanning plus daily mailbox backups for restore after accidental deletion. Microsoft 365 customers can add a separate Combell Microsoft 365 backup product for more frequent cloud backups of mail and files. Local client backups are still recommended for dual protection.
SMTP relay and Flexmail marketing path
A dedicated mail-server / SMTP relay product targets higher-volume sending with plan-based monthly send limits and optional dedicated IP, aimed at newsletters and app transactional mail that would hit shared-mailbox limits. New mailbox customers are offered Flexmail e-mail marketing trial packages via the sister brand in the team.blue group.
24/7 multilingual Benelux support
Combell markets round-the-clock support by phone (toll-free lines advertised), chat, and e-mail in local languages, including weekends and holidays. The company claims to have been the first Belgian hoster with 24/7 support (from 2000). This is a core reason Benelux SMEs pick Combell over pure self-serve global suites.

Mailo

French-hosted webmail with IMAP, EAS, and classic protocols
Webmail plus IMAP4 for clients, Exchange ActiveSync for mobile sync, and POP3 on paid tiers; SMTP relay with account credentials. Vendor states mail and content stay on servers in France. Free tier is ad-supported with lower quotas; Premium unlocks POP3, more aliases, and larger mail/cloud caps. Suits teams that need standard desktop/mobile clients rather than a closed proprietary app only.
Mailo Junior supervised email for children
Child accounts (about ages 6–14) only exchange mail with contacts a parent or teacher validates. Age-adapted mini/junior UIs, no ads on Junior, optional promotion to a standard account while keeping the address. Separate Junior mobile apps. Unique fit for families and schools versus generic consumer mail.
Calendar, virtual disk, and open sync protocols
Shared calendars and tasks, address book, photo albums, and a virtual disk for files with WebDAV/FTP access. CalDAV and CardDAV for external clients. Premium+ can unlock OnlyOffice in-browser editing. Better as an all-in-one Mail&Cloud for SMEs/families than bare IMAP-only privacy mail.
Mailo Pro spaces: custom domains and mutualised storage
Pro Start/5/Modulo style plans share mail+cloud quota across accounts, support custom domains (register, transfer, or declare external), distribution lists, mailbox sharing, resource calendars, and manager tooling. Priority Pro hotline with documented acknowledgement and restoration targets for Pro subscriptions. Aimed at TPE/PME, associations, and municipalities—not a full Google Workspace clone.
Optional server-side PGP and account security controls
Built-in PGP/MIME encrypt and sign in the webmail as a trusted third party (keys managed on Mailo for multi-device convenience). Two-factor authentication, application passwords, connection history, and guardianship-style access options. Not zero-knowledge E2EE by default—use external client crypto if the provider must never hold keys.

Assurance & compliance: Combell E-mail vs Mailo
Assurance & compliance	Combell E-mail	Mailo
Independent security / no-logs audit	Not found No public independent no-logs or mailbox-content audit found; ISO certificates are management-system certs, not no-logs proofs.	Not found Charter claims no commercial reading of messages; automated AV/spam scanning on servers. No public third-party audit PDF found.
ISO 27001	Vendor claimed Vendor states first Belgian hoster certified in 2011; certificate PDF linked on ISO page; scope includes hosting and related services. Re-verify current certificate in procurement.	Not found No ISO 27001 claim found on legal/security/primary pages researched.
ISO 27701 (privacy information management)	Vendor claimed Vendor claims first Benelux hoster (2021); scope text includes e-mail and office tools. Certificate PDF linked on site.	Not listed
ISO 9001	Vendor claimed Vendor claims certification since 2007; certificate PDF linked; scope includes e-mail & tools among other services.	Not listed
SOC 2 / SOC 3	Not found No public SOC 2/3 report located on Combell marketing/trust pages during research.	Not found No SOC 2/3 report referenced on public product pages.
GDPR / EU data protection	Vendor claimed Belgian EU entity; detailed privacy policy referencing GDPR; ISO 27701 claimed for privacy management. Confirm DPA and processing roles for your use case.	Vendor claimed French controller; privacy rules cite GDPR and French correspondence secrecy; DPO at dpo@mailo.com; France storage claim.
US CLOUD Act exposure (indicative)	Partial EuropeanStack assessment: no known US parent of Combell nv, but Microsoft 365 SKUs use Microsoft (US-parented) as cloud processor; public subprocessor list missing; privacy policy contemplates non-EU manufacturers with SCCs for some products. Basic/Hosted Exchange on Benelux DCs is a lower-exposure path than Microsoft 365. Not legal advice.	Partial EU entity / no known US parent / France-claimed mail hosting, but Verifone and PayPal (US-group) on payment path; full infra subprocessors unpublished. Assessment only—not legal advice.
Data processing agreement (B2B)	Not found No self-serve public DPA download found. Privacy policy describes processor contracts with sub-contractors; contact Data Protection Team (data.protection@combellgroup.com) to request current DPA and subprocessor list.	Not found Privacy rules and terms cover processing; no standalone public B2B DPA download found—request via DPO or Pro channel.
EU AI Act	Not applicable Core product is email hosting; optional Microsoft Copilot add-on is Microsoft AI — evaluate under Microsoft terms if purchased, not as a Combell-native AI system.	Not applicable Traditional email/cloud suite; not marketed as an AI system product.

Considerations & known limitations: Combell E-mail vs Mailo
Considerations & known limitations	Combell E-mail	Mailo
Microsoft 365 path uses Microsoft cloud	High Choosing Microsoft 365 via Combell does not keep mailbox/file data solely on Belgian Combell servers. Microsoft remains the cloud provider for those tenants; CLOUD Act and transfer diligence must treat Microsoft, not only Combell.	Not listed
No public subprocessor list	Medium Privacy policy confirms third-party processors and group sharing but does not publish a named register. Buyers must request the current list (including Flexmail, Microsoft if applicable, and team.blue affiliates) before relying on residency claims.	Not listed
Not end-to-end encrypted mail	Medium Provider-side spam filtering and backups imply conventional hosted mail architecture. Unsuitable where zero-access encryption is a hard requirement.	Not listed
ISO claims not independently re-verified here	Low ISO 9001/27001/27701 are vendor-published with PDF certificates. This evaluation marks them claimed; procurement should check validity dates and scope against the actual email services purchased.	Not listed
PE-backed group ownership	Low team.blue has major PE investors (Hg and reported co-investors). This is European PE structure, not a US Big Tech parent, but ownership can change; track change-of-control clauses in contracts if sovereignty is critical.	Not listed
PGP is server-side trusted third party	Not listed	Medium Webmail PGP holds keys on Mailo for multi-device use. Provider-access risk differs from zero-knowledge E2EE defaults at Tuta/Proton. Use external crypto if that is a hard requirement.
Incomplete public subprocessor inventory	Not listed	Medium Privacy rules name payments, domains, and free-tier ads, but not a full list of mail storage, backup, or anti-spam infrastructure vendors. Request annex for B2B risk review.
US-group payment processors	Not listed	Low Checkout shares email with Verifone/Paybox; PayPal is also offered. Limited to billing path per privacy rules, but relevant to CLOUD Act diligence.
Free tier third-party advertising	Not listed	Low Mailo Free shows ad banners via agencies under IAB TCF consent (Sirdata CMP). Premium removes ads. Ad cookies stated as not tied to Mailo profile.
No public ISO/SOC or independent security audit	Not listed	Medium Security posture relies on first-party statements and internal measures. Procurement teams may need questionnaires or NDA evidence.
Free accounts deleted after inactivity	Not listed	Low Mailo Free unused for 365 days can be deleted with content loss. Premium/Pro have different retention rules—plan backups and renewals.

Fit

Combell E-mail

Best fit when

Benelux SMEs that want professional domain addresses with IMAP/POP or Exchange and a real phone helpdesk
Teams already buying domains or web hosting from Combell / team.blue and consolidating vendors
Organisations that need Hosted Exchange calendars and push without standing up their own mail servers
Buyers who want Microsoft 365 with local DNS/mailbox configuration and 24/7 Dutch/French/English support
Senders who need an SMTP relay or Flexmail path alongside domain mailboxes

Poor fit when

Requirements for end-to-end encrypted or zero-access email (provider cannot read content)
Need for open-source self-hosted mail only (Combell is hosted SaaS, not a self-host product)
Hard ban on any Microsoft-class processor when the org still wants full Office cloud collaboration
Procurement that requires a public subprocessor register before first contact (list not published online)
Teams seeking free unlimited consumer mail rather than paid professional mailboxes

Consider instead when

When: You need Belgian or EU end-to-end encrypted mail with OpenPGP / zero-access positioning
Consider: Mailfence (Belgium) or Proton Mail
Combell is classic hosting mail with spam filters and backups, not an E2EE privacy suite.
When: You want privacy-focused paid mail without Microsoft suite lock-in and are fine outside Benelux support culture
Consider: Posteo, Tuta, Soverin, or Runbox
Stronger anti-tracking or encryption narratives; thinner local Belgian phone support than Combell.
When: You only need Microsoft 365 and do not value a Benelux reseller for setup/support
Consider: Microsoft 365 direct (or Google Workspace if you prefer Google)
Combell does not remove Microsoft as processor; direct purchase may be simpler for pure Microsoft estates.

Mailo

Best fit when

EU individuals and families wanting French-hosted mail with calendar and cloud disk in one account
Parents/schools needing supervised child email (Mailo Junior) with contact allow-lists
French SMEs, associations, and municipalities needing custom domains and mutualised Pro storage
Teams that depend on IMAP, EAS, CalDAV, CardDAV, or WebDAV rather than a locked-in app
Buyers who accept freemium ads on free tier or low-cost Premium rather than pure prepaid anonymity mail

Poor fit when

Orgs that require default end-to-end encryption with zero-access provider architecture
Buyers that need open-source server code or official self-hosting
Enterprises needing SOC 2 / ISO 27001 evidence already published on a trust centre
Heavy Google Workspace / Microsoft 365 collaboration suites (docs/drive ecosystem depth)

Consider instead when

When: You need zero-knowledge / default E2EE webmail
Consider: Tuta or Proton Mail
Mailo PGP is optional and server-side trusted third party
When: You want German privacy mail with different encryption/product posture
Consider: Posteo or mailbox.org
Compare protocols, storage bundles, and business features side by side
When: You need Swiss multi-product cloud with mail plus broader suite
Consider: Infomaniak kMail
Different country stack and product breadth
When: You need US Big Tech ecosystem integration at any cost
Consider: Gmail or Microsoft 365 / Outlook.com
Trade EU entity and France residency claims for ecosystem depth

Open questions for due diligence

Combell E-mail

Will Combell provide a signed DPA and a current named subprocessor list for Basic vs Hosted Exchange vs Microsoft 365 SKUs?
For Basic and Hosted Exchange, are all mailbox stores, backups, and anti-spam engines restricted to Belgium/Netherlands with no US-group subprocessors?
What Microsoft data residency / EU Data Boundary options are available on Combell-sold Microsoft 365 tenants?
Can independent auditors receive ISO certificate numbers, scopes, and any penetration-test summaries under NDA?
How is Flexmail (and other sister brands) contractually separated when mailbox customers enable marketing tools?

Mailo

Will Mailo sign a GDPR Article 28 DPA with a full subprocessor and transfer annex for Pro customers?
What is the named primary data-centre operator and backup/DR location beyond the France and Ecritel website-host statements?
Is there an independent penetration test, ISO 27001 roadmap, or customer-available security whitepaper?
Where is Rainbow (video) and OnlyOffice data processed relative to the France mail claim?
Current UGAP / public procurement listing status for French public buyers?