Head-to-head · Email Anti-Spam Software
N-able Mail Assure vs Rspamd
N-able Mail Assure leads on 0 checks, Rspamd on 1, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreN-able Mail Assure · 8.6/10
- Free planonly Rspamd
- Free trialonly N-able Mail Assure
N-able Mail Assure scores higher on our rubric for email anti-spam software: 8.6 against 7.9 out of 10; our editors rank them #4 and #7.
Rspamd offers free plan; N-able Mail Assure doesn't.
N-able Mail Assure is the better fit for MSPs managing multiple protected mail environments. Rspamd is the better fit for technical teams building programmable filtering.
- N-able Mail Assure fits best
MSPs managing multiple protected mail environments
- Rspamd fits best
Technical teams building programmable filtering
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Side by side
| Feature | N-able Mail Assure 8.6/10 Visit ↗ | Rspamd 7.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.6 | 7.9 |
| Ranking | #4 in Email Anti-Spam Software | #7 in Email Anti-Spam Software |
| Best for | MSPs managing multiple protected mail environments | Technical teams building programmable filtering |
| Pricing model | Paid | Free plan + paid |
| Starting price | Pricing on request · 30-day trial | £100/mo |
| Free plan | — | ✓ (best) |
| Free trial | 30 days | — |
| Deployment | Cloud | Desktop, Self-hosted |
| Platforms | Web | Linux, macOS |
| Integrations | 2 integrations | 11 integrations |
| Features N-able Mail Assure 0/3 · Rspamd 0/3 | ||
| Phishing detection | Not checked yet | Not checked yet |
| Malware scanning | Not checked yet | Not checked yet |
| Attachment scanning | Not checked yet | Not checked yet |
| Specs | ||
| Quarantine access | Not checked yet | Not checked yet |
| Supported mail platforms | Not checked yet | Not checked yet |
| Quarantine retention | Not checked yet | Not checked yet |
| Deployment type | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
|
|
| Cons |
|
|
| Our verdict | N-able Mail Assure is a cloud-based email security service designed primarily for managed service providers and their customers. It filters inbound and outbound email against spam, malware, phishing, ransomware, spoofing, and other… Read the review → |
Rspamd is an open-source email filtering engine for enterprises, email service providers, hosting providers, and mail-server operators. It analyzes inbound and outbound messages through statistical learning, reputation checks,… Read the review → |
Strengths and trade-offs
N-able Mail Assure — where it wins
- Filters inbound and outbound email with machine learning and threat intelligence
- Combines continuity, encrypted archiving, quarantine, and authentication controls
- Supports multitenant management, Microsoft 365, Google Workspace, and an API
Where it doesn't
- Pricing requires contacting sales rather than selecting a published numeric plan
- The 30-day offer is a trial, not a perpetual free plan
- Cloud deployment may not suit organizations requiring an on-premises model
Rspamd — where it wins
- Open-source scoring with Bayesian and machine learning classification
- SPF, DKIM, DMARC, phishing, antivirus, and outbound controls
- HTTP API, Milter, Lua rules, and broad mail-server integrations
Where it doesn't
- Requires technical administration of rules, protocols, and deployment
- Scale starts at £100/month for 5K mailboxes
- Custom configuration may be more than small teams need
- N-able Mail Assure8.6/10 · Pricing on request · 30-day trial
A broad, MSP-focused email security service with filtering, continuity, archiving, and multitenant control.
Visit N-ableFull verdict → - Rspamd7.9/10 · Free plan
A configurable gateway for teams building spam, phishing, and malware controls.
Visit RspamdFull verdict →
More comparisons
- Barracuda Message Archiver vs N-able Mail Assure
- Barracuda Message Archiver vs Rspamd
- Symantec IT Management Suite vs N-able Mail Assure
- Symantec IT Management Suite vs Rspamd
- MX Guarddog vs N-able Mail Assure
- MX Guarddog vs Rspamd
- N-able Mail Assure vs Forcepoint Email Security Cloud
- N-able Mail Assure vs Mimecast Email Security
All email Anti-Spam software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





