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Managed SMTP server

High-volume sending. Without running a mail server.

A fully managed SMTP relay tuned for cold and transactional email at scale. Dedicated IPs, automatic warmup, full authentication and live reputation monitoring — we run the infrastructure, you just send.

Dedicated IPs, warmed on a private ramp curve
SPF / DKIM / DMARC + reverse DNS done for you
Per-IP reputation monitoring with auto-throttle
Standard SMTP credentials + REST API
From $90/mo (3-month term) · 14-day free trial

Start free trial Start 14-day trial

7-day trial · Credit card required · Cancel anytime

Deliverability score+12 this week

92Excellent

SPFPass

DKIMPass

DMARCPass

Spam-word check0 flagged

Custom tracking domaintrack.acme.io

Blacklist statusClean · 12 lists

What managed sending looks like4 metrics

The relay, the IPs and the monitoring — all run for you

METRIC / 01

99.9%

Delivery uptime

Redundant relays with automatic failover across regions.

METRIC / 02

Servers to manage

No Postfix, no DNS console, no patching. We run the infrastructure.

METRIC / 03

14-day

Free trial

Test full sending and deliverability before the first invoice.

METRIC / 04

$90

Per month

Billed on a 3-month term. Dedicated IP, warmup and monitoring included.

How it works

Point, authenticate, warm, send

Connect over standard SMTP and we handle the infrastructure, authentication and reputation underneath.

STEP / 01

Point your app at our relay

Drop in standard SMTP credentials — host, port, user, password — or use the API. Works with any app, CRM or sequencer.

STEP / 02

We authenticate the domain

SPF, DKIM, DMARC and reverse DNS are configured and validated on your sending domain automatically.

STEP / 03

IPs warm on a private curve

Your dedicated IPs ramp on a managed warmup schedule so volume grows without tripping spam filters.

STEP / 04

Send at scale, monitored live

Throughput, bounces, complaints and reputation are watched in real time with auto-throttle and alerts.

Inside the managed relay

Sending infrastructure, fully operated

Everything that makes self-hosted SMTP painful — warmup, blacklists, patching, PTR records — handled and monitored by DitLead.

01 · Managed

Sending infrastructure, fully operated

Running your own SMTP server means Postfix configs, IP warmup, blacklist firefighting, patching and PTR records. DitLead's managed SMTP server removes all of it — we run redundant, monitored relays and you just send.

Redundant relays with regional failover
No server admin, patching or config files
Standard SMTP + REST API endpoints
99.9% delivery uptime SLA

See pricing

Deliverability score+12 this week

92Excellent

SPFPass

DKIMPass

DMARCPass

Spam-word check0 flagged

Custom tracking domaintrack.acme.io

Blacklist statusClean · 12 lists

02 · Dedicated IPs

Your own IPs, warmed and watched

Each managed SMTP plan includes dedicated IPs that warm on a private ramp curve and are monitored against major blacklists daily. Your reputation is yours alone — never shared with another sender.

Dedicated IP pool, not shared
Automatic warmup ramp on new IPs
Daily blacklist monitoring across 12 lists
Reverse DNS + DKIM signing per domain

Deliverability suite

Unified inbox · all channels14 new today

Anna K — Stripe2m

Yes, that's exactly the problem we…

Marcus R — Figma11m

Happy to chat — Tuesday 2pm work?

Paula C — Notion1h

Callback scheduled for tomorrow.

Sam L — Vercel3h

Forwarding to our procurement team.

Jonas M — Retool5h

Connected. Send the deck?

03 · Observability

Every send, accounted for

A managed relay is only as good as its visibility. Track throughput, delivery, bounces, complaints and per-IP reputation in real time — with auto-throttle that protects reputation before it breaks.

Real-time throughput + delivery dashboard
Bounce + complaint classification
Per-IP reputation score, 0–100
Auto-throttle + Slack/webhook alerts

See analytics

Campaign · "Series B SaaS · Q3"Reply rate 8.5%

SENT

42,184

OPENS

71%

REPLIES

8.5%

BOOKED

MonTueWedThuFriSatSun

What's included

A sending relay with nothing left to administer

Dedicated, authenticated, warmed and observable out of the box.

FEAT / 01

Fully managed relay

We run redundant SMTP infrastructure — you never touch a server.

0 admin

FEAT / 02

Dedicated IPs

Your own warmed IP pool, never shared with other senders.

Private

FEAT / 03

Full authentication

SPF, DKIM, DMARC and reverse DNS configured per domain.

Auto

FEAT / 04

Automatic IP warmup

New IPs ramp on a managed curve to protect reputation.

Built-in

FEAT / 05

Reputation monitoring

Per-IP score, blacklist watch and auto-throttle.

Live

FEAT / 06

SMTP + API

Standard SMTP credentials or REST API — wire up any app.

Any stack

By the numbers8 metrics

What the managed SMTP server delivers

Illustrative benchmarks, not measured guarantees — your results depend on ICP, offer, list quality and copy.

UPTIME

99.9%

Redundant relays, regional failover

SERVERS TO RUN

No Postfix, no patching

FREE TRIAL

14 days

Prove deliverability first

TERM

3 months

Then month-to-month

STARTING PRICE

$90/mo

Dedicated IP + warmup included

BLACKLISTS WATCHED

Daily monitoring per IP

AUTH

Full

SPF · DKIM · DMARC · rDNS

INTERFACES

SMTP + API

Wire up any app or stack

The trade

What you get vs. what you stop running.

Left is what we operate for you. Right is the mail-server toil you hand off.

INCLUDEDWhat you get10 items

01Fully managed, redundant SMTP relays with regional failover
02Dedicated IPs warmed on a private ramp curve
03SPF, DKIM, DMARC and reverse DNS configured per domain
04Daily blacklist monitoring across 12 major lists
05Real-time throughput, bounce and complaint dashboards
06Per-IP reputation score with auto-throttle
07Standard SMTP credentials and a REST API
0899.9% delivery uptime with proactive alerts
0914-day free trial before the first invoice
10Slack and webhook alerts on reputation drift

EXCLUDEDWhat you skip8 items

01Configuring and patching your own Postfix or Exim server
02Cold IPs that get you blocked on day one
03Manually checking SPF/DKIM/DMARC and PTR records
04Firefighting Spamhaus and Barracuda listings yourself
05No visibility into why a send bounced or complained
06Reputation shared with strangers on a pooled relay
07Paying extra for warmup, monitoring and dedicated IPs separately
08Pager alerts at 3am because the relay fell over

vs the alternatives6 rows

Managed, not just hosted

Most relays hand you an IP and wish you luck. DitLead warms, monitors and protects it.

Capability	DitLead	Apollo	Instantly	Smartlead	Lemlist
Fully managed (no server admin)			Partial		Partial
Dedicated IPs included		Add-on	Add-on		Add-on
Automatic IP warmup					Manual
Per-IP reputation monitoring		Basic			Basic
14-day free trial
Starting price	$90/mo	$80+	$90+	Self-host	$120+

FAQ8 entries

Managed SMTP, explained

Still curious? Our team responds in under an hour.

Talk to sales

A managed SMTP server is sending infrastructure that DitLead operates on your behalf — redundant relays, dedicated IPs, authentication, warmup and reputation monitoring all run for you. You connect via standard SMTP credentials or a REST API and send, without ever administering a mail server, patching software or chasing blacklist listings.

The managed SMTP server starts at $90 per month, billed on an initial 3-month term, after which it continues month-to-month. The price includes a dedicated IP, automatic warmup, full authentication and reputation monitoring. It comes with a 14-day free trial so you can prove deliverability before the first invoice.

Yes — the managed SMTP server includes a 14-day free trial. You get full sending, dedicated IP warmup and the deliverability dashboard during the trial so you can validate placement and throughput before committing to the 3-month term.

IP warmup and reputation building take time to pay off — a dedicated IP ramps over the first few weeks and reaches full, stable reputation after that. The 3-month term ensures your IPs are properly warmed and producing peak deliverability rather than being churned before they mature. After the initial term, billing is month-to-month.

Yes. Every managed SMTP plan includes dedicated IPs that are yours alone — never pooled with other senders. They warm automatically on a private ramp curve and are monitored against 12 major blacklists daily, with per-IP reputation scoring and auto-throttle.

Yes. The managed SMTP server exposes standard SMTP credentials (host, port, username, password) plus a REST API, so it drops into any application, CRM, transactional system or sequencer that can send over SMTP — including DitLead's own campaigns.

Pre-warmed email accounts are ready-to-send mailboxes for running cold outreach campaigns inside DitLead. The managed SMTP server is sending infrastructure — a relay you point your own apps and high-volume or transactional traffic at. Many teams use both: pre-warmed mailboxes for outreach and the managed SMTP server for app and transactional email.

DitLead monitors every dedicated IP against 12 blacklists daily. If an IP is listed, traffic automatically fails over to healthy IPs, volume is throttled on the affected IP, and our team begins delisting while you're alerted in Slack or by webhook — so a single listing never takes your sending down.