Both vendors make sure confidential email reaches its recipient protected, without anyone distributing certificates by hand. This page puts operating model, hosting, method and module scope side by side and backs every statement about SecuMailer with a public source.
In short
Conbool is an email security suite from Germany with nine modules, as a cloud service or on-premises, with Conbool GmbH in Hamburg as the contracting party. SecuMailer describes itself on its own website as a fully Dutch company based in Lelystad, advertises a private Dutch cloud and infrastructure always within Europe, and lists SecuFiler and Data Haven alongside SecuMailer. If you must demonstrate the Dutch NTA 7516 standard, they hold it; if you need S/MIME and PGP at the gateway and on-premises operation, that is Conbool.
Side by side, with a source for every statement about the competitor.
The same suite runs as a cloud service or entirely in your own data centre, with the same feature set.
SecuMailer describes its service as a SaaS solution with central management of encryption policies and advertises a private Dutch cloud.
Retrieved from secumailer.com on 6 September 2026.
Hosting in Germany, the contracting party is Conbool GmbH in Hamburg.
SecuMailer gives Zilverparkkade 72 in Lelystad as its address, describes itself as a fully Dutch company and states that the infrastructure is always within Europe.
Retrieved from secumailer.com on 6 September 2026.
S/MIME and PGP at the gateway, with nothing to install for the user, plus a message portal and encrypted PDF for recipients without a certificate.
SecuMailer names AES256 as its encryption and lists eIDAS registered mail and data loss prevention rules as components.
Retrieved from secumailer.com on 6 September 2026.
Nine modules on one platform: spam and phishing protection, encryption, file transfer, archiving, signatures, DMARC reporting, 365 Backup, awareness and continuity.
The website names SecuMailer as the base, SecuFiler for file transfer and Data Haven as its own cloud storage, plus interfaces over REST, SMTP and GraphQL.
Retrieved from secumailer.com on 6 September 2026.
Conbool does not hold NTA 7516. The focus is GDPR compliance, data processing with a German contracting party, and the NIS2 requirements.
SecuMailer states that it is NTA 7516 certified, names a SOC 2 certification and advertises 99.95 per cent availability.
Retrieved from secumailer.com on 6 September 2026.
Migration
The path is the same as for any change in the mail flow and needs no cut-off date with downtime.
Which domains, which mailboxes, which groups of recipients are affected? That produces the rule list.
Conbool is added as a second path while the existing service keeps running. Two test mailboxes are enough for the first pass.
Rules, exceptions and recipient lists are carried over and checked one by one.
The mail flow is switched over; message tracing shows every delivery. The previous service stays reachable until the observation period ends.
The old path is cancelled only once nothing runs through it any more.
Access to older messages in your current service is governed by that vendor's terms. Please clarify retention and export before cancelling.
Decision aid
Industries
Richtlinie, Umsetzungsgesetz und BSIG: wer betroffen ist und was gilt.
Learn moreSaaS-SecureMail aus der EU, ohne Appliance-Pflege.
Learn moreS/MIME, PGP und Domain-Verschlüsselung nach NIS-2 angemessen.
Learn moreNIS-2-konforme E-Mail-Sicherheit mit Audit-Trail.
Learn moreSensible PDFs verschlüsselt versenden, ohne Empfänger-Konto.
Learn moreEmpfänger-Web-Reader für Schlüssel-lose Empfänger.
Learn moreOhne Add-on und ohne Zertifikate auf den Endgeräten.
Learn moreAlso compared
Comparisons with adjacent solutions.
We set up a test environment and carry over your rules without touching live operations.
Statements about SecuMailer come exclusively from publicly available sources, namely the website secumailer.com. Claims about internal processes, pricing or architecture that are not documented there are avoided. Statements about Conbool come from our own product documentation and contractual commitments.
As of 6 September 2026. Vendor information changes. Before deciding, we recommend asking both vendors about the points that matter to you and having the answers confirmed in writing.
SecuMailer is a trademark of its respective owner. Conbool is a trademark of Conbool GmbH. This page is an editorial comparison and not official material from SecuMailer.