Zimbra installation and administration
We plan the installation, upgrades, maintenance and protection of the Zimbra environment. We check resources, certificates, DNS settings and backup processes in line with the specific platform.
MAIL SYSTEMS AND MIGRATIONS
Business email. Under your control.
Email connects your employees, clients and partners. We help you choose, set up and maintain a system that fits your needs.
What our service includes
Migrations between platforms
We prepare mail transfers between Zimbra, Microsoft 365 and other supported systems. The scope of transferring messages, calendars and contacts is determined after checking the source and destination.
Authentication and deliverability
We check SPF, DKIM and DMARC and whether sending sources are aligned with your domain. We analyse bounce messages and mail flow, bearing in mind that final acceptance of a message also depends on the recipient's system.
Hybrid and transitional environments
When the business requires a gradual migration, we design mail routing and the interplay of different systems. Each such model includes verification of connectors, domains and possible limitations.
From the first conversation to support
Without skipping important steps.
We understand the situation.
We get to know the system, users, risks and the desired outcome.
We agree on the change.
We define scope, schedule, responsibilities and post-work checks.
We hand over and support.
We document what was done and agree on ongoing maintenance.
From configuration to verification
Technical scope of work
DNS, SMTP and mail flow analysis
The review covers MX, A/AAAA and PTR records, the SMTP server name, TLS certificates and legitimate sending sources. We analyse SMTP responses, NDR messages, the mail queue and relevant system logs. We include application senders, scanners and external services so that important messages are not left out of the plan.
SPF, DKIM and DMARC without abrupt changes
We list permitted sending sources, check DKIM selectors and analyse authentication alignment with the sender domain. We propose a DMARC policy after reviewing flows and reports, with a controlled introduction of stricter settings. Every change is followed by test messages and header analysis; we do not promise to bypass recipients' filters.
Zimbra administration and coexistence
We plan resources, storage, service maintenance, certificate renewal and the recovery procedure. For parallel operation of Zimbra and Microsoft 365 we work out the recipient list, the accepted domain model, connectors and routing rules. We specifically test internal and external delivery paths, non-existent recipients and the possibility of mail loops.
Hands-on experience
Expertise applicable to your system.
Hands-on work covers administration of Zimbra environments and business mail services, as well as planning Zimbra and Microsoft 365 coexistence. In public descriptions we do not publish client configurations, access data or security details.
Good to know
Your questions.
Clear answers.
Can we keep our existing email domain?
As a rule, yes, provided you have the right to manage the domain and DNS. During preparation we check the settings and plan the necessary changes.
Can you guarantee that every message will reach the inbox?
No. Delivery also depends on sender reputation, message content and the recipient's rules. We can check the configuration and fix identified technical causes of problems.
Let's start with your business.
Tell us what works, what gets stuck and what you want to improve.