Deliverability & technical
Infrastructure, authentication and deliverability: what decides whether your emails arrive.
All articles
Deliverability & technical
Email deliverability rate: how to measure and improve it
Your deliverability rate counts emails accepted by servers, not those reaching the inbox. The formula, the measurement tools and a plan to raise it.
11 min read
Deliverability & technical
Legitimate interest in B2B: prospecting without explicit consent
In B2B, emailing prospects without prior consent is possible because another legal basis, legitimate interest, takes over: its conditions and proof.
10 min read
Deliverability & technical
Sending emails via API in GDPR compliance
Connecting your CRM to a sending API removes no GDPR obligation: legal basis, consent proof in the call, payload minimisation, key security and DPA.
13 min read
Deliverability & technical
Tracking pixel and the CNIL recommendation: what changes for your email campaigns
The CNIL adopted its recommendation on email tracking pixels on 12 March 2026: transition ends on 14 July and named open tracking requires consent.
9 min read
Deliverability & technical
Quishing: the QR code threat in emailing
Quishing is phishing by QR code: the malicious link hides inside an image, slips past classic anti-spam filters and puts your B2B deliverability at risk.
6 min read
Deliverability & technical
Email accessibility: 2025 compliance
The European Accessibility Act has applied since 28 June 2025. What it really changes for B2B senders, and how to bring your campaigns into compliance.
8 min read
Deliverability & technical
Sender reputation: the key factor in your deliverability
Sender reputation decides whether your emails land in the inbox or in spam: here is how to measure it, protect it and rebuild it when it has been damaged.
7 min read
Deliverability & technical
Microsoft tightens its email rules in 2025: what changes for B2B senders
Since 5 May 2025, Microsoft requires SPF, DKIM and DMARC from any domain sending over 5,000 emails a day to Outlook.com, Hotmail.com and Live.com.
9 min read
Deliverability & technical
New Gmail/Yahoo rules 2024-2025: what B2B senders must know
Since February 2024, Google and Yahoo require SPF, DKIM, DMARC, one-click unsubscribe and a spam complaint rate under 0.3% from every bulk sender.
13 min read
Deliverability & technical
SPF, DKIM, DMARC configuration: complete guide
SPF, DKIM and DMARC prove to receiving servers that your emails are legitimate, and Google, Yahoo and Microsoft require them. The configuration guide, step.
11 min read
Deliverability & technical
B2B email deliverability: the technical guide
Do your emails really reach their destination? The technical guide to B2B email deliverability: authentication, reputation, list hygiene, filtering and.
10 min read
Deliverability & technical
An overview of B2B prospecting tools: what should you keep?
Emails, calls, LinkedIn, databases, automation: new prospecting tools appear every week. An overview of B2B prospecting tools, and what you should really keep.
9 min read
Deliverability & technical
Customer lifecycle: reducing churn effectively
Understanding the customer lifecycle and limiting churn is central to B2B marketing. How to reduce churn effectively with the right email at each stage.
4 min read
Deliverability & technical
650 emoji for your email campaigns
Emojis have become a universal language for catching attention. 650 emoji for your email campaigns, ready to copy, with the display rules to know.
13 min read
Deliverability & technical
The problem of animated gifs with Outlook
An animated GIF makes an email more attractive, but Outlook only shows its first frame. The problem explained, and how to design a GIF that still works.
3 min read
Deliverability & technical
The definition of deliverability in email marketing
Deliverability is the art of getting emails into recipients' inboxes. The definition, how it is measured, and the factors that make it rise or fall.
5 min read
Deliverability & technical
The Backscatterer blacklist: the easy way out
Is your IP listed on Backscatterer? What this blacklist measures, why you are on it, and the delisting procedure step by step.
2 min read
Deliverability & technical
Emailing statistics: Can telephone calls be counted?
Emailing is now the biggest outbound prospecting channel. Can the telephone calls it generates be counted in your statistics? What can be measured, and how.
3 min read
Deliverability & technical
How does content-filtering anti-spam software work?
Sender reputation on one side, message content on the other: how content-filtering anti-spam software decides between inbox and spam, and what it looks at.
5 min read