Deliverability & Security
Our own gateways, proven reputation and award-winning security standards – so emails aren't just sent, but actually seen.
The problem: firewalls & security gateways
Firewalls and security gateways check every email before it arrives.
What appears as delivered in your campaign reporting can still end up in quarantine on the receiving server – without ever showing up in your own metrics.
Security gateways on the recipient side
Many companies place their own security gateways in front of the inbox, additionally checking every incoming email – independently of the mail provider.
Silent quarantine instead of a bounce
Emails classified as suspicious aren't rejected, but held back. There's no error message, just silence.
A blind spot in your own statistics
The dispatch report shows “delivered” – whether the email actually lands in the inbox remains an open question.
Deliverability as an achievement
Deliverability doesn't happen by accident. It comes from infrastructure, certification and the ongoing upkeep of your own reputation.
Our own gateways, worldwide dispatch
Dispatch via self-operated infrastructure – with no detour through third parties.
CSA Certified
Whitelisting on the Certified Senders Alliance list ensures preferential treatment with the major inbox providers.
M3AAWG member
Active membership in the worldwide alliance against spam and abuse – a strong industry credential and commitment to email security best practices.
Reputation monitoring
Bounce and complaint management run continuously, so anomalies are spotted immediately.
Authentication, briefly explained
Technical signals decide whether an email is considered trustworthy. At martrexo, they're correctly set up and monitored from day one.
SPF, DKIM, DMARC
The baseline authentication that proves: this email really does come from the stated sender.
MTA-STS & TLS
Encrypted transport between mail servers, enforced and secured.
DNSSEC
Secured DNS resolution – part of our commitment to the BSI guidelines (see Gold Status).
BSI Hall of Fame –
Gold Status
Award-winning. Operated in Germany.
martrexo has been recognized by BSI, Bitkom e. V. and eco e. V. in the Email Security Year with Gold Status, the highest level of the BSI Hall of Fame.
Gold stands for the implementation of the Technical Guidelines TR-03108 (Secure Email Transport) and TR-03182 (Email Authentication), in particular the implementation of DNSSEC.
In the same company as such renowned businesses as BASF, Porsche, Lufthansa and Deutsche Telekom.
For IT
Setup, operation and support are all taken care of for you – we handle the ongoing maintenance of the deliverability infrastructure.
Setup
We help set up the DNS records and advise on deliverability issues from third-party systems.
Interfaces
Integration with websites, databases and CRM systems – additional effort is only required when a custom integration is needed.
Single Sign-on
Available on request and included with the Connected tier and above.
Operations & maintenance
Ongoing maintenance, monitoring and updates of the deliverability infrastructure are handled by martrexo, not by your internal IT.
Legal & data protection
GDPR and BDSG-compliant, hosted in Germany. Double opt-in and audit-proof logging of all consents are standard, not an add-on.
Compliance
UWG-compliant, with a DPA and TOMs provided.
EU-First
Operations on our own infrastructure in Germany – data sovereignty is a key advantage.
Support as a differentiator
Real human support in every tier – no call centers, no bots. From the Engage tier onwards, a personal Customer Success Manager is on hand.
Deliverability is no accident.
Whether it's questions about your own deliverability or a look at the technical details – the next step is just one click away.