Works with Google, Microsoft, and any SMTP provider

Send outreach emails that actually land. Unlimited inboxes, one simple price.

SignoFast is email outreach software that warms every inbox, runs campaigns and multi-variant sequences, and unifies replies in one Unibox. No per-seat or per-inbox traps. Built for solo operators, SDR teams, and agencies on one flat plan.

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Trusted by 2,400+ teams

4.9/5
GoogleOutlookSMTP

Works seamlessly with your inbox

GGoogle Workspace
MMicrosoft 365
SMTP / IMAP

Outreach Tools That Punish You for Growing

Tiered plans and inbox caps were built for vendors, not for teams sending at volume.

Paying per inbox?

Your bill doubles every time you scale.

Locked warmup features

Until you upgrade to the next tier.

Ten inboxes, ten tabs

No unified view of replies or pipeline.

There's a better way.

Features

One platform for outreach, deliverability, and replies

Automated Warmup for Every Inbox You Own

Protect reputation on every account

Protect your sender reputation automatically. Works with Google, Microsoft, and any SMTP account with no manual configuration needed.

Your Email Provider? We've Got You Covered.

G

Google Workspace

OAuth

Connect Gmail and Workspace in minutes.

Connect in 2 minutes

M

Microsoft 365

OAuth

Outlook and Exchange Online supported.

Connect in 2 minutes

Custom provider

SMTP / IMAP

Bring any inbox your stack already uses.

Connect in 2 minutes

No vendor lock-in. Switch or add accounts any time.

One Plan. No Limits. No Surprises.

One flat price. Unlimited scale. Any email provider. No volume tiers.

Limited-time pricing for customers only. Lock in this rate before it changes.

$49/mo

or $470/year. Everything included.

  • Unlimited connected inboxes
  • Unlimited warmup accounts
  • Unlimited campaigns
  • Unlimited leads
  • Unlimited sequences and variants
  • Unibox
  • Global analytics
  • Gmail, Outlook, and SMTP/IMAP support
  • All future features included
Get Started. No Credit Card Required

View full pricing and annual savings

Most email outreach software tools charge more as your list grows. SignoFast stays $49/mo with unlimited leads and mailboxes. Compare every published monthly tier below.

One plan

SignoFast

Everything included. No tiers to upgrade.

$49/month

or $470/yearSave vs monthly billing

Start free

Everything on your plan

  • Unlimited active leads
  • Unlimited emails
  • Unlimited mailboxes
  • Warmup included on every inbox
  • Google, Microsoft, SMTP/IMAP

Limited-time pricing for customers only. Lock in this rate before it changes.

Monthly cost at common lead volumes

Every plan from each brand in one view. Lemlist prices are per seat. Competitor lead caps are often fixed totals, not monthly resets.

BrandPlanMonthly priceLead limitEmail sendsMailboxes
SignoFastOne plan$49/moUnlimited active leadsUnlimited emailsUnlimited mailboxes
InstantlyGrowth$47/mo1,000 uploaded contacts (fixed cap, does not reset)5,000 emails/moUnlimited email accounts
Hypergrowth$97/mo25,000 uploaded contacts (fixed cap)100,000 emails/moUnlimited email accounts
Light Speed$358/mo100,000 uploaded contacts (fixed cap)500,000 emails/moUnlimited email accounts
Add-on (Hypergrowth or Light Speed)+$87/mo each+25,000 uploaded contacts per add-on+125,000 emails/mo per add-onUnlimited email accounts
SmartleadBase$39/mo2,000 active leads (fixed; delete to free space)6,000 emails/mo (resets monthly)Unlimited mailboxes
Pro$94/mo30,000 active leads (fixed)90,000 emails/moUnlimited mailboxes
Unlimited Smart$174/moUnlimited active leads150,000 emails/moUnlimited mailboxes
Unlimited Prime$379/moUnlimited active leads500,000 emails/moUnlimited mailboxes
LemlistEmail Starter$39/user/moNo unlimited lead storage; use campaigns + database credits5,000 emails/mo per userIncluded senders per seat (see vendor site)
Email Pro$79/user/mo200 enrichment credits/mo per userHigher send limits on platform3 senders per user included
Multichannel Expert$109/user/mo400 enrichment credits/mo per userUnlimited emails/messages per user (fair use on platform)5 senders per user included
Outreach Scale$159/user/moHigher enrichment limits; team featuresBuilt for agencies and larger teams5+ senders per user; extra mailboxes billed

SignoFast is one flat plan with unlimited leads, mailboxes, and warmup on-platform (fair use applies). Competitors sell multiple monthly tiers with lead and send caps; uploaded or active lead limits often do not reset when you delete contacts. Prices below are published monthly list rates in USD. Confirm current plans on each vendor site. Sources: Instantly, Smartlead, Lemlist. Instantly also sells separate Leads and CRM products not included above.

Up and Running in Under 10 Minutes

  • 1

    Connect your email account

    Gmail, Outlook, or SMTP. OAuth or credentials in under two minutes.

  • 2

    Turn on warmup

    We ramp volume and engagement automatically so deliverability stays healthy.

  • 3

    Build campaigns with sequences and variants

    Timezone scheduling, tracking toggles, text-only mode, and multiple variants per step included.

  • 4

    Watch replies land in your Unibox

    Every hot lead in one queue. Global analytics show what to scale or cut.

    • Email outreach software FAQ

    Answers for teams evaluating outreach platforms, warmup, and unified inboxes.

    Email outreach software helps you send personalized messages to prospects at scale while managing deliverability, follow-ups, and replies. SignoFast connects your real inboxes (Google, Microsoft, or SMTP), warms them up, runs campaigns with sequences and variants, tracks performance, and routes every reply into one Unibox.

    Start Sending Outreach That Gets Replies

    No per-inbox fees. No upgrade walls. Just results.

    Start Your Free Trial

    No credit card required. Cancel anytime. Setup in 10 minutes.