Cold email softwareEmail & LinkedIn in one platform
Other tools cap your leads, pause your sends, and paywall replies. SignoFast includes unlimited email leads, sends, and warmup on one plan, plus branching sequences that mix email and LinkedIn in the same workflow.
Google
Microsoft
LinkedInCampaign overview
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Illustrative multichannel analytics. Email and LinkedIn metrics in one dashboard.
Works seamlessly with your accounts
Google WorkspaceMicrosoft 365LinkedInWhat is SignoFast?
SignoFast is cold email and LinkedIn outreach software. It connects your Google Workspace, Microsoft 365, SMTP/IMAP, and LinkedIn accounts so you can run email-only or multichannel sequences, warm mailboxes, and reply from one Unibox.
Agencies running client campaigns, B2B SaaS founders doing their own outbound, and sales teams consolidating email and LinkedIn tools.
Pricing: Workspace plan $39/mo or $384/yr. LinkedIn accounts $30/mo per LinkedIn account (billed monthly; no yearly discount on LinkedIn seats). See full pricing.
Most cold email tools cap uploaded leads, pause sends at monthly ceilings, restrict warmup, or charge extra to reply in a unified inbox. SignoFast includes unlimited email accounts, leads, sends, and warmup on one workspace plan, with LinkedIn as a transparent add-on.
Most tools claim unlimited mailboxes and warmups. What they often hide: fixed lead pools, monthly send ceilings, restricted warmup, and Unibox reply paywalls. SignoFast is built as the opposite: unlimited email on one plan, with LinkedIn as a clear add-on. See our guides on Instantly alternatives, email warmup, and Unibox.
Instantly Growth caps uploaded contacts at 1,000 total. SmartLead Base holds 2,000 active leads. These are fixed lifetime pools, not monthly resets. Past 1k contacts you are forced to pay $97 per month.
Starter tiers automatically cut you off and pause campaigns around 5,000 to 6,000 emails per month. Scaling sends means jumping to high-tier plans before you even add a single teammate.
Competitors lock direct two-way Unibox replies behind higher tiers or demand a separate 'CRM' add-on fee just to reply to interested leads. If you don't pay extra, you must log in to 20 mailboxes manually.
There's a better way.
Features
Run email campaigns with multi-step sequences, or multichannel campaigns that mix email and LinkedIn. Warmup, Unibox, and analytics are included in every workspace. LinkedIn outreach depth and teams & agency features follow below. See pricing.
Google, Microsoft, and SMTP
Email warmup gradually ramps send volume and engagement on each connected mailbox so new or cold accounts build sender reputation before full campaign volume. SignoFast runs this automatically, with no separate warmup tool.
Mailbox warmup
outreach@acme.com
Warmup ramp · day 9
sales@acme.com
Warmup ramp · day 8
smtp@acme.io
Warmup ramp · day 6
LinkedIn channel
Everything you need to run LinkedIn as part of multichannel sequences: dedicated IPs, a shared inbox, conditional paths, and the full action set. Email and LinkedIn in one sequence builder, priced as a LinkedIn add-on, not a second outbound stack.
LinkedIn accounts are an add-on. See LinkedIn add-on pricing.
Included with LinkedIn outreach
Each LinkedIn account can run on a dedicated IP matched to a country. A custom IP option is available when you need more control.
LinkedIn messages and InMail sit beside email replies in one Unibox. Filter by account, campaign, or unread, then reply without leaving SignoFast.
Build outreach like a flowchart. After each step, choose what happens next based on real outcomes: accepted, not accepted, replied, or no reply. See the full path at a glance.
Use every supported LinkedIn action in a sequence, alone or chained with email. Attach conditions so the next step only runs when the lead behaves as expected.
One seat covers one connected LinkedIn account. Each lead stays on the same account for the full sequence so conversations stay consistent.
Campaign builder
Every campaign starts with a clear choice. Stay on email, or combine channels so you control exactly what happens after each step.
Linear sequences with warmup, variants, tracking toggles, and timezone-aware scheduling. Ideal when you only need email.
Build your sequence like a flowchart. Drag, drop, and branch email and LinkedIn actions. See the full outreach path at a glance.
Product preview
Multichannel flowBranch on connection accepted, no reply, opened email, and similar outcomes. Set timeouts in days, hours, or minutes. Stop all outreach when a lead replies.
See the product
Full walkthroughs start muted so you can watch without noise. Unmute from the player controls if you want the background music.
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See how email campaigns run multi-step sequences, variants, and timezone-aware sends. Open on YouTube
See branching sequences that mix email and LinkedIn steps in one workflow. Open on YouTube
Teams & Agencies
Run multiple isolated workspaces for clients or brands, invite your team with the right permissions, and hand clients a white-label portal that looks like yours, not ours.
Fully isolated environments for every client or brand
Invite the right people with the right access
Owner
Full access
Admin
Everything except billing and ownership transfer
Editor
Manage campaigns
View / VA
Monitor workspace, manage sending accounts, reply in Unibox
Client
White-label portal access only (agency feature)
Your domain, agency name, logo, and colors. Your client experience.
Client portal sections you can enable
White-label is free today. Pricing may change later.
SignoFast brings your sending accounts and LinkedIn into one multichannel workspace.
OAuth
Connect Gmail and Workspace accounts in minutes.
Connect in minutes
OAuth
Outlook and Exchange Online supported.
Connect in minutes
SMTP / IMAP
Bring any mailbox your stack already uses.
Connect in minutes
Hosted login
Connect LinkedIn accounts for multichannel sequences.
Connect in minutes
No vendor lock-in. Switch or add accounts any time.
One workspace plan for unlimited email. LinkedIn accounts available as an add-on. No volume tiers on email sending.
$32 per month billed yearly ($384 per year). Save 18%
SignoFast workspace plan: $39 per month billed monthly. Or $32 per month billed yearly ($384 per year). Save 18%. LinkedIn accounts are an add-on at $30/mo per LinkedIn account.
Per workspace. Unlimited email accounts, leads, and sends. LinkedIn accounts available as an add-on.
Most email outreach software tools charge more as your list grows. SignoFast stays $39/mo with unlimited leads and mailboxes. Compare every published monthly tier below.
SignoFast
Everything included per workspace. One login for all of them.
$32 per month billed yearly ($384 per year). Save 18%
SignoFast workspace plan: $39 per month billed monthly. Or $32 per month billed yearly ($384 per year). Save 18%. LinkedIn accounts are an add-on at $30/mo per LinkedIn account.
Save 18% on yearly billing
Start FreeEverything on your plan
Limited-time pricing. Lock in this rate before it changes.
Every plan from each brand in one view. Lemlist prices are per seat. Competitor lead caps are often fixed totals, not monthly resets.
| Brand | Plan | Monthly price | Lead limit | Email sends | Mailboxes |
|---|---|---|---|---|---|
| SignoFast | One plan | $39/mo | Unlimited Active Leads | Unlimited Monthly Emails | Unlimited Email Accounts |
| Instantly | Growth | $47/mo | 1,000 uploaded contacts (fixed cap, does not reset) | 5,000 emails/mo | Unlimited email accounts |
| Hypergrowth | $97/mo | 25,000 uploaded contacts (fixed cap) | 100,000 emails/mo | Unlimited email accounts | |
| Light Speed | $358/mo | 100,000 uploaded contacts (fixed cap) | 500,000 emails/mo | Unlimited email accounts | |
| Add-on (Hypergrowth or Light Speed) | +$87/mo each | +25,000 uploaded contacts per add-on | +125,000 emails/mo per add-on | Unlimited email accounts | |
| Smartlead | Base | $39/mo | 2,000 active leads (fixed; delete to free space) | 6,000 emails/mo (resets monthly) | Unlimited mailboxes |
| Pro | $94/mo | 30,000 active leads (fixed) | 90,000 emails/mo | Unlimited mailboxes | |
| Unlimited Smart | $174/mo | Unlimited active leads | 150,000 emails/mo | Unlimited mailboxes | |
| Unlimited Prime | $379/mo | Unlimited active leads | 500,000 emails/mo | Unlimited mailboxes | |
| Lemlist | Email Starter | $39/user/mo | No unlimited lead storage; use campaigns + database credits | 5,000 emails/mo per user | Included senders per seat (see vendor site) |
| Email Pro | $79/user/mo | 200 enrichment credits/mo per user | Higher send limits on platform | 3 senders per user included | |
| Multichannel Expert | $109/user/mo | 400 enrichment credits/mo per user | Unlimited emails/messages per user (fair use on platform) | 5 senders per user included | |
| Outreach Scale | $159/user/mo | Higher enrichment limits; team features | Built for agencies and larger teams | 5+ senders per user; extra mailboxes billed |
SignoFast is one flat plan with unlimited leads, mailboxes, monthly sends, and fully functional Unibox replies (fair use applies). Competitors enforce monthly send ceilings, cap your leads, and lock two-way Unibox replies behind separate CRM add-on monthly subscriptions (like Instantly's separate CRM/Leads product). 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.
The same platform, different outbound jobs.
Isolated workspaces, team roles, and white-label portals so each client stays separate while you run email and LinkedIn from one login.
Unlimited email on one flat workspace plan, plus LinkedIn steps in the same sequence when you need a second channel.
Replace a patchwork of email senders, LinkedIn tools, and reply inboxes with one Unibox and one multichannel builder.
Trust & compliance
Clear information about SignoFast, how outreach stays sustainable, and where to read our policies.
SignoFast operates from East Ham, London, E6 2JA, United Kingdom. Support: support@signofast.com.
Automated warmup, smart pacing, inbox rotation, and timezone-aware send windows help keep mailboxes healthy as you scale email outreach.
SignoFast detects your LinkedIn plan tier and recommends daily caps, weekly invite and message limits, and safe send windows for each connected account.
Learn how we handle data in our Privacy Policy and Terms of Service.
How it works
Four steps from signup to your first send. No implementation project, no deliverability consultant required.
Gmail, Outlook, SMTP, or LinkedIn. OAuth or hosted login in a few minutes.
We ramp email volume and engagement automatically so deliverability stays healthy.
Choose a linear email campaign or a multichannel flow with LinkedIn steps, branching, and timezone scheduling.
Email and LinkedIn replies in one queue. Analytics show what to scale or cut.
Ready to launch?
Connect email and LinkedIn, then launch your first campaign today.
Answers for teams evaluating email and LinkedIn outreach, warmup, and unified accounts.
SignoFast is cold email and LinkedIn outreach software. It connects Google Workspace, Microsoft 365, SMTP/IMAP, and LinkedIn accounts so you can warm mailboxes, run email or multichannel sequences, and reply from one Unibox. Unlimited email accounts, leads, sends, and warmup are included on one workspace plan; LinkedIn accounts are a paid add-on.
Email outreach software helps you send personalized messages to prospects at scale while managing deliverability, follow-ups, and replies. SignoFast connects your real accounts (Google, Microsoft, or SMTP), warms them up, runs campaigns with sequences and variants, tracks performance, and routes every reply into one Unibox.
SignoFast protects sender reputation at every step: automated warmup on every account, smart pacing and inbox rotation, proper random delays between sends, timezone-aware send windows, and bounce and reply handling built in. For LinkedIn, plan-aware daily limits keep accounts within safe bounds. The platform is built around the practices that keep mailboxes healthy and outreach sustainable as you scale.
Yes. Connect Google Workspace or Gmail accounts with OAuth. Mail sends from your connected Google identity, with warmup, rotation, campaigns, and analytics included on the same unlimited plan.
Yes. SignoFast supports Microsoft 365 and Outlook mailboxes via Microsoft OAuth, with the same unlimited accounts, warmup, sequences, Unibox, and global analytics as Google accounts.
Yes. Any provider that supports SMTP/IMAP can be connected alongside Google and Microsoft accounts, so agencies and teams are not locked into one vendor.
Google and Microsoft OAuth connect your Workspace or Microsoft 365 identity with provider-native auth. SMTP/IMAP connects any compatible mailbox (including custom domains on other hosts). SignoFast supports both so you can mix providers in one workspace.
Email warmup gradually increases sending volume and engagement signals so new or cold accounts build sender reputation before full campaign volume. SignoFast automates warmup for every connected account so deliverability stays healthier as you scale.
Unlimited on your plan. There are no per-account fees for connected email mailboxes.
Upload or sync the audiences you want to contact. SignoFast focuses on delivery, pacing, rotation, analytics, sequences, and replies so your lists run through one outreach workflow.
A workspace is a fully isolated environment with its own campaigns, leads, connected accounts, billing, and analytics. Data never crosses workspaces. You can run multiple workspaces under one login, but each workspace requires its own paid subscription.
Owner has full access. Admin can do everything except billing and ownership transfer. Editor manages campaigns. View/VA can monitor the workspace, manage sending accounts, and reply in Unibox. Client is for agency white-label portal access only.
Yes. Agencies can launch a branded client portal on their own domain with their agency name, logo, and colors. Clients only see what you allow: Campaigns, Accounts, Unibox, Analytics, or any combination. White-label is not locked to a specific plan tier. It is free today; pricing may change later.
White-label is free today and is not locked to a paid tier. Pricing may change later. The client portal can show Campaigns, Accounts, Unibox, Analytics, or any combination you choose.
A Unibox is a unified reply inbox: every response from every connected mailbox and campaign appears in one queue, so your team can assign, label, and reply without logging into dozens of accounts.
Unlike other platforms that enforce strict monthly send ceilings, cap your uploaded leads, restrict or charge extra for email warmup, and lock Unibox replies behind separate CRM monthly subscriptions or high-tier upgrades, SignoFast has no hidden limits on the workspace email plan. You get unlimited leads, unlimited monthly sends, unlimited account warmups, and a fully functional Unibox that lets you reply directly to interested leads. All included in one flat plan. LinkedIn is a transparent per-account add-on.
Yes for teams that want unlimited email accounts, leads, sends, and warmup on one flat workspace plan ($39/mo or $384/yr), plus an included Unibox and optional LinkedIn multichannel. Compare published Instantly tier limits on our pricing page.
Yes. Start a free trial with no credit card required on signup. You can explore warmup, campaigns, sequences, Unibox, and analytics before committing to a paid plan.
Yes. Export your lead lists from your current tool and import them into SignoFast, then reconnect Google, Microsoft, SMTP, and LinkedIn accounts. Rebuild sequences in SignoFast’s email or multichannel builder to match your existing flows.
You own your leads, campaign content, and connected-account outreach data. SignoFast processes it to provide the Service. See the Privacy Policy for retention, processors, and your rights under GDPR and CCPA where applicable.
Yes. Multichannel campaigns mix email and LinkedIn steps in one flow. You can wait for a connection to be accepted or a reply to land before the next step, set timeouts in days, hours, or minutes, and stop all outreach the moment a lead replies. LinkedIn requires an add-on seat per connected LinkedIn account.
SignoFast detects your LinkedIn plan tier and recommends daily limits based on that tier and account health, with extra caution for new or smaller accounts. You can edit daily caps per action, weekly invite and message limits, and monthly personalized invite-note quotas. Sending respects timezone, day-of-week, and time windows. If a session drops, the account is marked reconnect required and stops receiving new outreach until you reconnect.
LinkedIn accounts are an add-on at $30/mo per LinkedIn account. They are billed monthly with your workspace subscription. There is no yearly discount on LinkedIn seats. One seat covers one LinkedIn account.
One seat per connected LinkedIn account, not per teammate. Multiple teammates can work in the same workspace. Seats are counted by LinkedIn accounts you connect.
The workspace plan is $39/mo billed monthly or $384/yr (about $32/mo). It includes unlimited email accounts, leads, sends, and warmup. LinkedIn is $30/mo per LinkedIn account.
Unlimited email on your workspace plan. LinkedIn as an add-on. One Unibox for every reply. Free trial with no card required.
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