Reach out the way you’d want to be reached.
The blog
What we learn building Phantera, numbers and mistakes included. For founders of consultancies, IT services firms and B2B agencies who do their own prospecting.

2 min read
B2B multichannel sequence: email, LinkedIn, SMS and WhatsApp, in what order?
How to combine email, LinkedIn, SMS and WhatsApp in a B2B prospecting sequence without harassing anyone: the role of each channel, the order that respects the prospect, and a two-week example.
Multichannel, Prospecting rules

2 min read
WhatsApp for B2B prospecting: why we do not automate it
WhatsApp forbids businesses from messaging people without their prior consent, and suspends the accounts that do. What its policy says, and how to use WhatsApp without losing your number.
Prospecting rules, Multichannel

2 min read
B2B SMS prospecting in France: legal, under three conditions
Can you text business contacts in France to prospect without their consent? What the CNIL says, the STOP opt-out, sending hours, and how Phantera sends these texts from your own account.
Prospecting rules, Multichannel

2 min read
B2B cold email in France: what the CNIL says, in plain English
Do you need a business contact’s consent to email them in France? What the CNIL allows in B2B, the three conditions to meet, and the case of generic addresses like contact@.
Prospecting rules, Deliverability

2 min read
100 prospects, zero emails, all tests green: what our outage taught us
A Phantera campaign launched without a single email going out, while every test passed. The cause, the fix, and the rule anyone using a prospecting tool should apply.
Behind the scenes, Deliverability

2 min read
1,000 emails from one mailbox: the honest math
Why sending 1,000 cold emails at once from your own mailbox burns your domain, what Gmail and Outlook have required since 2024 and 2025, and the pace you should really plan for.
Deliverability