Bulko
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Launch B2B
email campaigns faster

Ready-to-use sending infrastructure, AI content rotation, replies, and follow-ups in one dashboard. You do not need to connect your own SMTP for the first launch.

Low prices
from $0.50 per 1,000 emails
Ready
SMTP pool
Replies
in one inbox
Try for free See how it works
500 emails free
No card required
Full functionality
Bulko dashboard
Inside the platform

One campaign.
The whole delivery
in one workflow.

You work with the list, the message, and the replies. Bulko handles the infrastructure, content variations, and delivery controls.

No mandatory SMTP setup. Create your first campaign right after signup.

No subscription. Buy email volume instead of another monthly tool.

Explore all features
01

Managed SMTP pool

Accounts are already connected. Bulko distributes volume, respects limits, and removes unavailable SMTP accounts from rotation.

ready to send
02

Email variations without copy-paste

Merge tags, spintax, and AI rewrites produce subject and body variations from one source email.

content
03

Replies next to the campaign

IMAP sync collects replies in one place, while classification separates interest, questions, and negative responses.

IMAP + AI
04

Credits instead of a plan

One-time purchases start at $5. Email credits do not expire, so use them when your next campaign is ready.

pay-as-you-go

Checked before delivery

content safety

Every outbound email is checked for phishing, malware, brand impersonation, and scam patterns. Suspicious content is blocked before it enters the delivery queue.

How it works

From a list of addresses to a positive response

Four steps of automation. You prepare the content and the database, Bulko then guides the recipient through the entire funnel.

1

Upload your list

Import a CSV or add addresses manually. You can check the list with the built-in email validator before launch.

2

AI creates unique emails

Spintax {a|b}, merge tags, AI-rewrite of subject and body every N emails. Thousands of variations from a single template.

3

Sending through our SMTP

Account rotation with per-account limits. Failed SMTP accounts are automatically disabled, the campaign does not stop.

4

AI analyzes replies

IMAP-sync + classification into positive / negative / question. Follow-up is sent automatically only to interested parties.

Campaign packages

Pay for delivery,
not for access.

Every package includes the same Bulko functionality. Only the volume of email and AI credits changes.

✓ no subscription ✓ credits do not expire ✓ full functionality
Package Emails AI credits Price

Starter Pack

For a first launch

Emails 5000
AI credits 250
Price
$5 $1.00/1K

Growth Pack

most selected

For regular campaigns

Emails 20000
AI credits 1000
Price
$15 $0.75/1K

Scale Pack

For growing volume

Emails 50000
AI credits 2500
Price
$30 $0.60/1K

Enterprise Pack

For high-volume delivery

Emails 120000
AI credits 6000
Price
$60 $0.50/1K
✓ Managed SMTP pool ✓ AI email variations ✓ Replies and follow-ups ✓ Analytics and REST API
Calculator

Need a different volume?

Choose the email volume and the price updates instantly.

Volume
50,000
Total
$30.00
1K 500K
≤5K
$1.00/1K
≤20K
$0.75/1K
≤50K
$0.60/1K
≤120K
$0.50/1K
>120K
$0.40/1K
$0.60/1K · 2,500 AI credits
Need more than 500,000 emails? Discuss custom volume.
Scenarios

Who Bulko is for

Three common use cases where one platform saves time on infrastructure and reply handling.

B2B Sales

Upload lead segments, personalize messages with merge tags, and quickly route positive replies to sales reps.

B2B
Sales teams
Lead generation and qualification
Lead Generation

Run multiple client campaigns, control volume, and collect replies in one interface without separate SMTP setup for every launch.

AG
Agencies
Customer campaigns
Recruiting

Create personalized candidate outreach, sort interested replies, and send thoughtful follow-ups.

HR
Recruiting
Candidate sourcing
Two products

Choose the right format

Dashboard campaigns and SMTP access solve different needs and have separate balances.

Campaign Platform

Campaigns in the Bulko dashboard

Import a list, create your message, and launch through Bulko's ready-to-use infrastructure.

  • ✓ Editor, templates, and personalization
  • ✓ AI rotation and follow-up
  • ✓ Replies and statistics in one dashboard
  • ✓ Volume-based payment, no subscription
Create campaign
SMTP Access

SMTP for your application

Get relay credentials and connect them to a CRM, script, or another service that already sends email.

  • ✓ Standard SMTP connection
  • ✓ Rotation through Bulko infrastructure
  • ✓ Separate limit and relay statistics
  • ✓ Does not require Campaign Platform
Learn more about SMTP Access
FAQ

Frequently Asked Questions

Didn't find an answer? Write to [email protected] — we usually respond within an hour during business hours.

Bulko — is it just another Mailchimp?
No. Traditional newsletter platforms focus on opt-in lists and bulk marketing email. Bulko focuses on personalized B2B outreach, content variation, and reply handling.
Do I need to connect or set up anything before sending?
No. The SMTP accounts are already connected, configured and warmed up on our side — you create a campaign and send right away. Bulko handles IP reputation, account rotation and rate limits for you.
How many emails can I send per day?
It depends on your volume. Bulko spreads the load across its pool of warmed-up SMTP accounts and never exceeds account limits. Need more — just scale up your volume, we provide the infrastructure.
How do AI credits differ from email credits?
Email credit = one sent email. AI credit = one request to an AI model (topic generation, body rotation, response classification). For every 100 email credits, approximately 5-10 AI credits are sufficient with rotation enabled. If you use your own OpenAI key, Bulko AI credits are not deducted.
What happens if SMTP accounts get blacklisted?
Problem accounts are temporarily removed from rotation while sending continues through available pool accounts. We recommend validating your list first to reduce errors.
Who is responsible for complying with sending rules?
Requirements depend on the country, recipient type, and source of contact data. The user is responsible for the legality of the list and campaign content. Bulko adds an unsubscribe link, applies a global suppression list, and blocks dangerous content, but this does not replace legal review of your campaign.
Can I cancel my subscription and get a refund?
Bulko does not have subscriptions — all purchases are one-time. Refunds are possible within 14 days of purchase if no credits have been used. After use, refunds are calculated proportionally to the unused balance.
What is included in the welcome bonus upon registration?
500 email credits and 50 AI credits to your balance immediately after creating an account. No card required. This is enough to test the platform - send a test campaign to your addresses, see how analytics works, try AI generation.

How to send data to Bulko

Use the supported workflows available today. A separate guide library covers popular SMTP providers; these are guides, not native integrations.

CSV
Manual import
IMAP
SMTP Relay
Export statistics
SMTP guides
SSL encryption
TLS 1.3 end-to-end
Data control
Privacy and deletion
Send protection
Malicious content filter
Email support
[email protected]
Trusted by
professionals
230+
Users
1 100+
Active SMTPs
140K+
Addresses processed
500
Free emails
Blog

Useful resources

Tips, guides and insights on cold-email campaigns

Comparisons

SMTP2GO vs Bulko: SMTP Relay Pricing and Features Compared (2026)

SMTP2GO starts at $15 a month for 10,000 emails with a free plan of 1,000; Bulko sells 20,000 SMTP emails for $15 once, with no expiry. We compare pricing from 5k to 150k emails, ports, setup and payment, including where SMTP2GO comes out ahead.

7 min
Comparisons

SendGrid vs Bulko: SMTP Relay Pricing and Features Compared (2026)

SendGrid starts at $19.95 per month; Bulko sells 20,000 SMTP emails for $15 once, with no expiry. We compare pricing at 5k to 150k emails, setup, ports and payment options, and say honestly when SendGrid is the better pick.

7 min
Comparisons

Mailgun vs Bulko: SMTP Relay Pricing and Features Compared (2026)

Mailgun Basic starts at $15 a month for 10,000 emails; Bulko sells 20,000 SMTP emails for $15 once, with no expiry. Here is the pricing math from 5k to 150k emails, the setup steps, and an honest look at when Mailgun's API and webhooks are worth it.

7 min
Comparisons

Brevo vs Bulko: SMTP Relay Pricing and Features Compared (2026)

Brevo is a full marketing platform with a free plan of 300 emails a day; Bulko is a prepaid SMTP relay that sells 20,000 emails for $15 once. We compare pricing from 5k to 150k emails, setup, ports and payment, and say when Brevo is the better pick.

7 min
All articles

Launch your first campaign in 10 minutes

500 email credits and 50 AI credits free when you sign up. No card, no commitment.

Create a free account Pricing
No card required No commitment Credits Don't Expire
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