Dimitar Petkov
Co-Founder of LeadHaste. Builds outbound systems that compound. 4x founder, Smartlead Certified Partner, Clay Solutions Partner.
Articles by Dimitar Petkov
Showing the 24 most recent of 1141
Outbound field note
Mailgun Alternatives: Move Without Restarting Trust
Mailgun Alternatives: Move Without Restarting Trust
Pick a Mailgun alternative by the gap you are closing, then run a cut-over that preserves domain reputation, suppression records and delivery evidence.
Outbound field note
Amazon SES Alternatives: When Cheap Stops Paying
Amazon SES Alternatives: When Cheap Stops Paying
Decide when to replace Amazon SES by pricing the operating work it pushes onto your team, then plan a migration that keeps reputation and suppression intact.
Outbound field note
ZeroBounce Review: Features, Pricing, and Fit
ZeroBounce Review: Features, Pricing, and Fit
A practical ZeroBounce review covering result codes, APIs, bulk files, pricing, retention, security claims, and the teams it fits best.
Outbound field note
NeverBounce Review: Pricing, Results, and Fit
NeverBounce Review: Pricing, Results, and Fit
Review NeverBounce pricing, result codes, API workflows, integrations, and operating limits before adding it to your email verification process.
Outbound field note
NeverBounce Pricing: Build a Total-Cost Worksheet
NeverBounce Pricing: Build a Total-Cost Worksheet
Model NeverBounce pricing across credits, volume, check modes, unresolved results, integrations, retention, renewal, and exit.
Outbound field note
GMass Email Verifier: Test Classification Accuracy
GMass Email Verifier: Test Classification Accuracy
Test the GMass email verifier with a labeled set, status mapping, duplicates, suppression checks, exports, and measured error rates before sending.
Outbound field note
GMass Pricing: Model the Real Cost per Sender
GMass Pricing: Model the Real Cost per Sender
Model GMass pricing across individual and team plans, senders, Gmail or SMTP delivery, verification, operations, renewal, migration, and exit.
Outbound field note
Klenty Pricing: Model the Full Per-Seat Cost
Klenty Pricing: Model the Full Per-Seat Cost
Model Klenty pricing across seats, plan gates, dialer add-ons, calling minutes, CRM requirements, billing terms, overages, and exit work.
Outbound field note
QuickMail Pricing: Model the Real Cost per Client
QuickMail Pricing: Model the Real Cost per Client
Model QuickMail pricing across plan limits, inboxes, users, client workspaces, contact add-ons, migration, renewal, and export work.
Outbound field note
Saleshandy Competitors: Replace the Failed Requirement
Saleshandy Competitors: Replace the Failed Requirement
Compare Saleshandy competitors from the requirement that failed, using equivalent sending, prospect, client, integration, operating, migration, and export workloads.
Outbound field note
Warmly Alternatives: Replace the Workflow You Actually Need
Warmly Alternatives: Replace the Workflow You Actually Need
Start from the Warmly requirement that failed, then compare narrower identity tools and broader inbound platforms on the same workload, migration, and export terms.
Outbound field note
Website Visitor Identification Software: Compare Useful Signals
Website Visitor Identification Software: Compare Useful Signals
Compare website visitor identification software on one controlled traffic set: account versus person identity, match coverage, false matches, and cost per useful signal.
Outbound field note
Lavender AI Review: Run a Procurement Test
Lavender AI Review: Run a Procurement Test
A procurement-focused Lavender AI review: test coaching quality, workflow fit, integrations, manager evidence, privacy controls, and exit before rollout.
Outbound field note
Common Room Pricing: Calculate the Full Signal-to-CRM Cost
Common Room Pricing: Calculate the Full Signal-to-CRM Cost
Calculate Common Room pricing across plan allowances, add-ons, integrations, implementation, operator time, overages, contract terms, and exit work.
Outbound field note
Sales Pipeline Reporting: Build a Decision View
Sales Pipeline Reporting: Build a Decision View
Build sales pipeline reporting around cohorts, denominators, stage history, aging, coverage, source evidence, refresh timing, ownership, and action.
Outbound field note
Email Blacklist Monitoring for Sending Decisions
Email Blacklist Monitoring for Sending Decisions
Choose email blacklist monitoring that identifies the listed asset, preserves evidence, assigns an owner, and verifies recovery before sending resumes.
Outbound field note
AiSDR Pricing: Build the Full-Cost Worksheet
AiSDR Pricing: Build the Full-Cost Worksheet
Model AiSDR pricing with plan limits, infrastructure, data, review labor, CRM work, contract terms, overage evidence, and exit costs before approval.
Outbound field note
Email Feedback Loops: Route Complaints Into Suppression
Email Feedback Loops: Route Complaints Into Suppression
Email feedback loops differ by provider and output. Map eligibility and identifiers, then route recipient-level and aggregate complaints into the right controls.
Outbound field note
AI Call Analysis: Validate Signals Before CRM Writes
AI Call Analysis: Validate Signals Before CRM Writes
Validate AI call analysis against labeled calls before it writes to CRM. Measure each business field, calibrate abstention, preserve timestamps, and limit permissions.
Outbound field note
Lead Routing Software: Test Native CRM Rules First
Lead Routing Software: Test Native CRM Rules First
Choose lead routing software with a fixed record bake-off. Test native CRM rules first, then buy a specialist layer only for failures you can prove.
Outbound field note
No DMARC Record Found: Trace the Authoritative DNS Failure
No DMARC Record Found: Trace the Authoritative DNS Failure
A no DMARC record found result has six distinct causes, and only one of them is a genuinely absent record. Trace the query back to the authoritative zone before publishing anything.
Outbound field note
DKIM vs DMARC: Assign the Failure to the Right Owner
DKIM vs DMARC: Assign the Failure to the Right Owner
DKIM and DMARC fail for different reasons and route to different owners. Use the Authentication-Results header to assign the fix to your ESP, DNS owner or policy owner.
Outbound field note
Average Email Deliverability Rate: Define It First
Average Email Deliverability Rate: Define It First
Report email delivery with explicit denominators for attempted, accepted, bounced, delivered, inboxed, and replied messages, plus provider weighting.
Outbound field note
SMTP Relay Service for Cold Email: A Selection Test
SMTP Relay Service for Cold Email: A Selection Test
Choose an SMTP relay service by testing sender alignment, IP pool behavior, throughput controls, suppression handling, and message-level logs.
Ready to build outbound that compounds?
We'll build the entire system for your business, and the infrastructure it runs on stays yours.
Book Your Free Discovery Call →