Managed SMTP
A dedicated MTA that we operate on your behalf, with ongoing tuning, monitoring, reputation management and incident response. All the isolation of dedicated infrastructure with none of the operational burden.
Overview
Managed SMTP is Dedicated SMTP with a full operations envelope. Northbound engineers monitor throughput, deliverability, feedback loops and IP reputation continuously, and act on issues without waiting for the client to notice them.
This is the format most retained clients choose. It is designed for senders who need the outcome — inbox placement at volume — but do not want to hire or retain the internal deliverability team required to sustain it.
The service includes a monthly written review, a named engineer, incident response with defined SLAs, and quarterly infrastructure planning against the client's roadmap.
Benefits
- Named deliverability engineer as a single point of contact
- 24/7 on-call coverage for retained clients
- Continuous seed testing and inbox placement measurement
- Monthly written review with actions and volume forecasts
- Proactive complaint remediation before reputation drops
Technical specifications
| Response time | P1 — 15 min · P2 — 1 hr · P3 — next business day |
|---|---|
| Monitoring | Throughput, defer rate, complaint rate, blocklist status, Postmaster/SNDS |
| Reporting | Weekly telemetry, monthly written review, ad hoc incident reports |
| Change control | All infrastructure changes logged; client-approved windows for high-impact work |
Use cases
- — Any high-volume sender that treats email as revenue infrastructure rather than a marketing feature
- — Companies without in-house deliverability expertise
- — Programs with irregular volume spikes (product launches, promotional windows, iGaming events)
Questions
Is on-call really 24/7?
Do you handle blocklist delisting?
Related
- SMTP RelayAuthenticated SMTP submission to a hardened relay cluster, with per-stream credentials, en…
- Dedicated SMTPA private MTA cluster allocated to a single client. Dedicated IPs, isolated bounce and com…
- PowerMTALicensed PowerMTA nodes operated by engineers who have run it in production for over a dec…
- PostfixHardened Postfix installations for API-driven, transactional and general-purpose outbound …
- Dedicated IPsDedicated IPv4 allocations in multiple regions, with reverse DNS, SWIP assignment, PTR ali…
- IP RotationDeterministic and weighted IP rotation across pools, calibrated to volume, vertical and pr…