message throughput, mailbox retention, spam/antivirus processing and simultaneous clients. Time the job and identify CPU, storage or external-service waits before replacing hardware.
Imports, processing and simultaneous users.SimpleLogin Hardware Requirements: RAM, CPU, Storage & Mailbox Retention & Filtering
Plan SimpleLogin RAM, CPU, persistent storage and service dependencies, with workload-based ZimaOS sizing, backups and practical hardware choices.
SimpleLogin hardware requirements at a glance
SimpleLogin supports email aliases, forwarding rules and mail delivery integrations. Size it around message throughput, mailbox retention, spam/antivirus processing and simultaneous clients, including the complete service stack and durable data. DNS, public reachability, reverse DNS, outbound SMTP policy and sender reputation affect delivery independently of hardware. Include enabled filters and keep mail/configuration backups consistent.
- RAM
- The upstream self-host guide recommends at least 2 GB RAM.
- CPU
- Mail and web throughput plus configured filtering determine practical CPU demand.
- Storage
- Include PostgreSQL, mail queue, configuration and retained logs/backups.
- Required services
- Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology.
- Main sizing variable
- message throughput, mailbox retention, spam/antivirus processing and simultaneous clients.
- Practical Zima starting point
- ZimaBoard 2 832 with SSD-backed active state is an editorial starting point for modest use. Include the OS and all companion services; it is not a measured capacity guarantee.
From official requirements to the right setup
Plan the complete SimpleLogin workload before selecting a server.
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Official requirements
Choose the exact edition, stable release and supported container/runtime. Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology.
-
Confirm your needs
Test a representative busy operation: message throughput, mailbox retention, spam/antivirus processing and simultaneous clients. Record peak resident memory, CPU, disk latency and completion time, including other containers.
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Leave room to grow
Place active state on reliable persistent storage. Persist mailboxes, queue, domains, credentials, keys, aliases and filtering state. Budget working space for an upgrade or import and test recovery before relying on the deployment.
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Run it on ZimaOS
On ZimaOS, use a compatible amd64 container through Custom Install and reproduce all required services, volume mappings and device access. The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget.
Check every playback client
- Exact edition and stable release
- Compatible amd64 image/runtime
- All required companion services
- Realistic peak activity
- Persistent data and file ownership
- Free host ports and reachable URLs
- Working space and backup retention
- Successful database/file restore
Official minimum requirements
Reviewed October 30, 2026 against the linked upstream deployment documentation. Numerical values retain their stated minimum, recommendation or example scope; select release-compatible instructions before installation.
The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget. Numerical examples above retain their stated deployment scope; co-hosted services and independent backups need additional capacity.
| Requirement | Official minimum | What this supports |
|---|---|---|
| RAM guidance | The upstream self-host guide recommends at least 2 GB RAM. | Official guidance keeps its original test, recommendation or example scope. |
| CPU guidance | Mail and web throughput plus configured filtering determine practical CPU demand. | Core counts do not predict a fixed user, device or document capacity. |
| Storage planning | Include PostgreSQL, mail queue, configuration and retained logs/backups. | Installation space is separate from retained content, working files and backups. |
| Service topology | Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology. | Include every stateful companion service in the host budget. |
| Persistent state | Persist mailboxes, queue, domains, credentials, keys, aliases and filtering state. | An image rebuild or container replacement is not a backup. |
| Deployment boundary | The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget. | Check the linked project instructions for the selected edition and release. |
When to upgrade your hardware
Use observed SimpleLogin workload pressure to decide when an upgrade is warranted.
Busy operations exceed the available window
The complete stack runs short of memory
Persistent data approaches available capacity
Inspect the application and each required service for OOM events, sustained swap or growing queues. Reduce unnecessary concurrency before adding capacity.
Shared hosts and background work.Persist mailboxes, queue, domains, credentials, keys, aliases and filtering state. Track primary state and backup retention separately.
Long-lived installations and growing collections.Plan hardware growth with confidence
Address storage, memory, compute and deployment limits separately.
Use suitable active storage
Put latency-sensitive application/database state on durable local SSD storage and keep recoverable copies.
SATA or PCIe SSD according to measured data growth.Add memory for the complete stack
Choose a higher-RAM host when peak application and companion-service usage leaves inadequate OS headroom.
ZimaBoard 2 832 or ZimaBoard 2 1664 according to the measured constraint.Separate capacity from compute
A multi-drive system helps when retained content and backup storage are the problem; it is not automatically a faster application.
ZimaCube 2 when a broader multi-drive workload justifies it.Fix the observed bottleneck
The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget.
Check service configuration, I/O and network behavior before selecting a stronger CPU.Can it run on ZimaOS?
Official one-click ZimaOS availability has not been certified for this guide. Use the supported upstream runtime and service topology; consider Custom Install only when a maintained compatible container and all required host capabilities are available.
Custom install SimpleLogin in ZimaOS
Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology. Persist: Persist mailboxes, queue, domains, credentials, keys, aliases and filtering state.
Custom install SimpleLogin in the ZimaOS app โUse the official SimpleLogin deployment instructions
Keep the selected stable release, persistent paths and companion services aligned with upstream documentation.
Review SimpleLogin official installation โCheck workload-specific deployment details
The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget.
Review SimpleLogin deployment details โWhich Zima hardware fits SimpleLogin?
Start with the lowest reasonable host for the actual workload. Product specifications were checked against the current product pages.
Which workload best matches your SimpleLogin deployment?
Modest SimpleLogin deployment
Start with durable active data and a measured whole-stack memory budget.
- Workload optionZimaBoard 2 832
Heavier jobs or more companion applications
Choose added memory or compute only when observed peaks justify the change.
- Workload optionZimaBoard 2 1664
These are practical workload recommendations, not official app requirements, compatibility certification, measured capacity limits or performance guarantees. Include all co-hosted services and independent backups.
| Zima hardware | Best for | Example workload | Core configuration | Recommended boundary | Next step |
|---|---|---|---|---|---|
| ZimaBoard 2 832 | Modest SimpleLogin workload | message throughput, mailbox retention, spam/antivirus processing and simultaneous clients. |
|
This is an editorial host choice, not an official app minimum or a guaranteed user/device capacity. | Get Now |
| ZimaBoard 2 1664 | More processing or shared-service headroom | Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology. |
|
Size the combined stack and active working set; more RAM does not fix remote API limits or missing dependencies. | Get Now |
What the Press Says
Highlights from trusted reviewers worldwide.
โZimaCube 2: Not just another NAS, tested with 25TB storage, local AI agents, 4K transcoding, and real homelab workflows.โRead full review
โThe ZimaBoard 2 is a compact x86 server board that can be turned into a mini NAS, home server, media box, or self-hosting hub.โRead full review
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Frequently asked questions
Answers to SimpleLogin RAM, CPU, storage, Docker, database and ZimaOS sizing questions.
How much RAM should I plan for SimpleLogin?
The upstream self-host guide recommends at least 2 GB RAM. Include ZimaOS, the application and its companion services rather than reserving the entire machine for one container.
What drives the CPU requirement?
Mail and web throughput plus configured filtering determine practical CPU demand. The workload to test is: message throughput, mailbox retention, spam/antivirus processing and simultaneous clients.
Which data must survive a container update?
Persist mailboxes, queue, domains, credentials, keys, aliases and filtering state. Preserve a consistent database/file set and verify that your recovery procedure restores a working application.
What other services belong in the budget?
Follow the service topology in the linked upstream deployment for the chosen edition; include every required database, worker and storage service. The repository references PostgreSQL. These may be integrations or alternative backends; install only the services required by your selected topology.
Does this workload need a dedicated GPU?
A dedicated GPU is not assumed for the core workflow described here. Optional AI, acceleration or media-processing integrations must be evaluated separately against the selected backend.
Can I deploy it on ZimaOS?
Use an amd64 container and the current upstream service topology through Custom Install when a suitable maintained image is available. Container availability alone is not a compatibility certification.
What should I check before upgrading hardware?
The upstream self-host guide recommends at least 2 GB RAM and requires mail/web ports plus correct DNS. PostgreSQL, mail queues and configured filtering belong in the complete budget. Measure the same representative operation before and after a configuration or hardware change.
Which Zima device is a practical starting point?
ZimaBoard 2 832 is the editorial starting point for this modest deployment. Choose ZimaBoard 2 1664 for measured memory/processing pressure or broader shared services; retained data determines storage expansion.
What sources informed this SimpleLogin hardware guide?
This guide was reviewed against the linked project deployment documentation on October 30, 2026. Zima device choices are editorial workload guidance, separate from upstream requirements and measured performance.
