Build hyper-personalized prospect lists, send behavior-triggered follow-up sequences, warm up your sending domain automatically, and track every open, click, and reply. All from one platform at one flat monthly price. No credits to count. No contact limits. No surprises on your invoice.
Cold email is not one tool. It is at least three, and most startups only discover this after the first invoice.
Here is what most startup cold email guides leave out: a cold email sender is only the last step in a three-part workflow. Before you can send a single email, you need a list of verified contacts with deliverable email addresses. That means you need a lead database or LinkedIn scraper to find prospects, an email verifier to confirm addresses are valid before you send, and then the cold email platform to run sequences and track replies.
Most tools only do one of these three things well, which means you end up paying for all three separately. The Platform A entry plan for sending starts at $37 per month, a separate Platform C database subscription starts at $49 per month, and a dedicated email verifier adds another $30 to $50. You are at $120 to $200 per month before you have run a single campaign.
ProspectOK solves this by building all three into one flat $49 per month plan. You find verified leads from LinkedIn using your ICP criteria, the emails are verified before they ever enter your sequence, and you run automated multi-step campaigns with personalized images and landing pages, all from the same platform and the same invoice.
The full workflow lives in one platform. No CSV exports between tools, no re-verifying lists you already paid to build.
Search LinkedIn by job title, industry, company size, geography, and seniority level. ProspectOK finds matching profiles and verifies the business email for each one before adding them to your list. You define the criteria, the platform builds the list.
Every prospect in your list gets a unique email. Write custom opening lines referencing their company or role. Add dynamic images with their company logo or a personalised screenshot automatically inserted per recipient. Embed a video or link to a landing page that changes based on who is reading it.
Build multi-step sequences with custom wait times between each touchpoint. ProspectOK detects replies automatically and removes that prospect from the sequence so they never receive a follow-up after responding. Track open rates, click rates, reply rates, and meeting bookings across every campaign.
Generic templates get 1 to 3% reply rates. Personalized emails get 8 to 15%. Here is the difference in practice.
The term personalization gets used loosely in cold email. Inserting someone's first name into the subject line is not personalization. It is mail merge. Real personalization means referencing something specific about the prospect, their company, their recent activity, or their current challenge, in a way that makes it obvious you are writing to them specifically rather than to a segment of 500 people who share a job title.
ProspectOK supports three layers of genuine personalization that most cold email tools either do not offer or charge extra for:
Write a unique opening sentence for each prospect in your list, or use ProspectOK's AI to generate custom intros based on the prospect's LinkedIn profile, company news, or recent activity. Every email starts with something specific to that person, not a generic hook.
Automatically place each prospect's company logo, a custom text overlay, or a personalised screenshot onto a template image inside your email. Every recipient sees an image that appears made specifically for them, because it was. No manual editing, no Photoshop. ProspectOK generates each image dynamically at send time.
Every prospect who clicks your CTA lands on a page that shows their company name, a reference to their specific use case, or a custom headline based on their industry. Dynamic landing pages significantly outperform generic product pages as a cold email CTA destination.
Embed a personalised video in your cold email that references the prospect by name and company. Video in cold email consistently outperforms text-only emails for response rates, and ProspectOK handles the per-recipient customization automatically without you recording a separate video for each person.
Write different CTA copy for different segments of your prospect list. A VP of Sales gets a different ask than a Head of Marketing. Tailor the specific next step you are proposing to match what makes sense for each persona without running separate campaigns.
Track open rates, click rates, reply rates, and sequence completion across every campaign. See which email steps generate the most replies, which subject lines perform best in A/B tests, and which segments of your prospect list respond at the highest rate.
Research shows 80% of cold email replies come after the second or third touchpoint. Here is how a high-performing startup sequence is structured.
The tool stays useful as you grow. Here is how different stages use it.
Founders at pre-revenue stage do their own outreach. ProspectOK lets one person find leads, build a sequence, and start getting replies without hiring an SDR or subscribing to three separate tools to do the same job.
Seed-stage companies need to move fast and test multiple ICP hypotheses simultaneously. Run separate campaigns for different personas or verticals, compare reply rates, and double down on what converts without paying per seat for each team member who runs a campaign.
Series A companies hiring their first two or three SDRs need a tool that does not multiply in cost as the team grows. No per-seat pricing means adding another SDR to the platform costs nothing extra. Every rep gets unlimited sequences and unlimited lead finds.
Growth-stage teams running outreach across multiple verticals, geographies, or buyer personas can manage all campaigns from one platform. CRM sync keeps every reply and meeting booking in Salesforce, HubSpot, or Pipedrive without manual entry.
Since 2024, Gmail and Microsoft actively filter cold email that is not properly authenticated. Here is how ProspectOK keeps you out of spam.
In late 2024, Google updated its bulk sender policies and began rejecting emails that failed SPF, DKIM, and DMARC authentication at the SMTP level rather than routing them to spam. Microsoft followed with similar enforcement in 2025. This means cold emails sent from improperly configured domains now fail to deliver entirely, not just land in spam.
ProspectOK's deliverability features are built around this reality. Every new user receives setup guidance for SPF, DKIM, and DMARC configuration before their first email is sent. The platform includes an automatic email warm-up system that gradually increases daily sending volume from a new domain over two to four weeks, mimicking natural sending patterns to build sender reputation before full campaign volume begins. Sending rate controls prevent you from sending more emails per day than your domain's reputation can support, and bounce detection automatically suppresses addresses that bounce to prevent further damage to your sender score.
Step-by-step authentication setup for every major domain registrar so your emails pass authentication checks before you send your first message. Misconfigured authentication is the single most common reason cold emails land in spam.
New sending accounts start with low daily volumes and gradually increase over two to four weeks. The warm-up system sends real-looking emails within a network of ProspectOK accounts, marking them as important and preventing them from landing in spam, to build your domain's sending reputation before your campaign goes live.
Set conservative daily sending limits per inbox and rotate across multiple sending accounts so your outreach scales without triggering spam filters. Most experienced cold emailers recommend staying under 50 emails per day per inbox on fresh domains, with higher limits for warmed accounts.
Enter what you pay for each tool today. See instantly how much you save switching to ProspectOK's unlimited plan.
Start with the Starter plan to test the workflow. Move to Unlimited when your volume needs no ceiling.
| Tool | What It Does | Lead Database | Personalization | Real Monthly Cost |
|---|---|---|---|---|
| Platform A | Email sending only | Not included | Basic variables only | $120 to $150+ with leads |
| Platform B | Sending + image personalization | Very limited | Images only, extra cost | $100 to $180+ per seat |
| Platform C | Database + basic sequences | Credit-limited | Basic only | $99 to $299+ per seat |
| Platform D | Sending + unlimited inboxes | Not included | Basic variables | $100 to $200+ with data |
| ProspectOK | Leads + verify + send + personalize | Unlimited on $149 plan | Images, pages, video | $49 or $149 flat |
The questions startup founders and sales teams ask most before choosing a cold email platform.
Free tools and guides that help you get more from your outreach before and after sending.
Find verified B2B leads from LinkedIn by job title, industry, location, and company size. The lead source that feeds directly into your cold email sequences.
Check your cold email copy for spam trigger words before you send. Keeps your sequences out of spam folders and protects your sender reputation.
Calculate what your open rate means for your pipeline and how many emails you need to send to hit your reply and meeting volume targets.
Define exactly who you are targeting before you write a cold email. A clear ICP makes your personalization more specific and your sequences more effective.
Work backwards from your revenue targets to figure out exactly how many cold emails you need at your current reply rate to hit your pipeline goals.
A practical breakdown of what free email finder plans include and when your prospecting volume makes a paid plan the cheaper option.
ProspectOK finds verified leads, verifies every email, and runs hyper-personalised cold email sequences with dynamic images, custom landing pages, and embedded videos. Starter from $49 per month. Everything unlimited at $149 per month.
No credit card required. Cancel anytime. Starter $49 · Unlimited $149