Why they leave their tool. And why they choose OflowD.
What users blame Brevo, HubSpot, Instantly and Mailjet for. And what OflowD does differently.
Criterion
Brevo
HubSpot
Instantly
Mailjet
OflowD
Category
Email tool
CRM + add-ons
Cold email
Transactional + marketing email
3-in-1 acquisition engine
Sending
Mass mailing
Buried in the CRM
Multi-inbox cold
Email
Dedicated outbound sequences
Bot filtering
✕Raw rates
✕None
✕Warmup ≠ real filtering
✕Raw rates
INPI-patented multi-layer filtering
Sales health score
✕
✕
✕
✕
OflowD Index 0-100
Named leads
✕
✕
✕
✕
Name + company
Automatic deliverability protection
✕Manual
✕Manual
✕Cosmetic warmup
✕Manual
Invalid addresses removed, excluded from quota
Unsubscribe management
Basic
Basic
✕Minimal
Basic
Automatic + built-in protection
Data
Declared (you type it in)
Declared (CRM)
Dashboard scores ≠ reality
Declared
Generated from real behavior
Decision
You're left guessing
Manual scoring
No decision
No decision
The engine tells you who to call
Support
Slow, accounts suspended
Depends on tier ($$$)
Slow, late replies
Accounts suspended without reason
Responsive
LinkedIn / Instagram outreach
✕
✕
✕
✕
Engine-powered
France-hosted data / GDPR
Depends on plan
US-centric
US
French (OVH), basic
SES Paris, GDPR native, INPI
Entry price
~€25 (volume only)
Free, then expensive per module
~$30 (cold only)
~€15 (transactional only)
€59, all 3 layers combined
What users say
Public opinion trends, reworded. And OflowD’s answer, point by point.
Brevo
Email tool
What users say
A common complaint: account validation blocks the first sends for several days.
Users report support is hard to reach on paid accounts, including when a billing issue freezes all sending.
Several accounts report being deactivated without notice after a single complaint, with data loss.
The interface is seen as unstable: tabs that multiply, awkward filtering and segment exclusion.
Open rates are criticized for including bots and not reflecting real interest.
What OflowD does
No blocking validation: you send on day one.
Patented filtering: your rates are real, bots are removed.
Automatic deliverability protection: invalid addresses are removed without intervention, and they don’t count toward your quota. You don’t pay for dead contacts.
Intuitive interface validated by testers: simpler than the tools used before.
HubSpot
CRM + add-ons
What users say
A common complaint: you pay for a CRM that records what you type, not what actually happens.
Scoring is configured by hand and mostly reflects your own assumptions.
Cost climbs fast as you stack modules (Marketing Hub, Sales Hub, Service Hub).
The data stays declarative, not behavioral.
What OflowD does
Data generated automatically from the prospect’s real behavior, not from your input.
OflowD Index: a proprietary score, not scoring you tune by hand.
One subscription that covers everything, no stacked modules.
Instantly
Cold email
What users say
Users report that managed accounts get flagged and that warmup scores don’t reflect reality.
A frequent complaint: campaigns that stop sending without warning.
The shared warmup is blamed for degrading the reputation of recent domains.
Prices climb fast with add-ons (CRM, inbox placement, advanced search).
What OflowD does
Dedicated infra per client (SES Paris, dedicated domain), with no shared warmup that contaminates.
Built-in deliverability protection: the engine removes dead addresses before they cause harm.
DNS / MX validation before every send, not after the bounce.
Everything is included in the subscription, with no add-ons to buy.
Mailjet
Transactional email
What users say
A recurring complaint: support seen as unhelpful and accounts suspended without clear explanation.
The tool is perceived as basic for transactional email, poorly suited to prospecting.
What OflowD does
Built for B2B prospecting from day one, not transactional email adapted afterward.
The engine reads behavior and tells you who to call. A transactional tool just confirms the send.
Behavioral tracking
When OflowD says someone’s interested, it proves it.
When, how many times, and on which campaign. Not an abstract score: a timestamped history you can open.
Real business data
147 qualified leads. 27 meetings generated.
A 6-month trend. These aren’t projections: this is real data from an OflowD client.
Email tools charge you for sending. CRMs store what you type. Cold email tools inflate their scores. OflowD unites sending, analysis and decision in one engine, with real behavioral data. It’s a different category.
Change the category.
Your real rates, your first names, starting today.
