The invisible path of your email: sender, internet, recipient

Invisible path for your email

Sending an email may seem as simple as clicking "Send", but behind that click lies a real technical and human journey. As an email marketing expert, I invite you to delve into the invisible path for your emailto understand each crucial step in ensuring that your message is properly received.

1. You, the sender: starting point of the journey
When you write your message and press "Send", your email client or sending platform triggers a protocol. The most common is called SMTP server. It serves as a collection point for your content, your recipients and your attachments. At this stage, you define the header of your email (recipient, subject, sender). This is also where theauthentication you configure SPF to authorise your domain to send emails, then DKIM to digitally sign your content. These two mechanisms reinforce your credibility.

2. The role of DNS: locating your mailbox
Even before your email goes out, your server queries the DNS to locate the address of the destination server. This DNS resolution determines the IP of the receiving server. If your DNS is not correctly configured, the journey stops and your message bounces back. In 2025, major providers such as Microsoft require impeccable authentication before accepting a large flow of emails.

3. Routing and queues: waiting before the Internet
Once the IP has been identified, your server places your message in a queue. It then sends an SMTP request to the recipient's server. Each attempt creates detailed logs. In the event of a temporary error (overload, maintenance), your server automatically tries again. This persistence maximises your chances of delivery.

4. Crossing the Internet: security and filtering
Your email now crosses the public Internet. Along the way, security devices can analyse it: firewalls, proxies, anti-virus scanners. On arrival, the destination server applies the anti-spam filtering. It checks the reputation of your domain and IP, and the validity of your signature. DMARC. If any of these checks fail, your message may end up as spam or be rejected without notification.

5. Supplier filters: the quest for the inbox
Each provider (Gmail, Outlook, Yahoo, etc.) has its own criteria for classifying emails. Statistics show that an acceptable rate of email deliverability is below 85 % for most industries, with an optimal target of 95 % and above. Your upstream actions, such as segmenting your list and personalising your content, have a direct influence on these filters.

6. Arrival at the recipient's premises: a key moment
If the message passes these checks, it is finally delivered to your contact's inbox. This is where you enter the behavioural phase: open, click and response rates. Yourrecipient commitment are analysed to adjust your next campaigns. An email that is quickly ignored or deleted can damage your business. sender reputation and reduce your future chances.

7. Feedback loop: learning and optimisation
Each campaign provides you with concrete data. You can measure your bounces, unsubscribes and reports of spam. This feedback guides your adjustments: improving content, optimising format and strengthening authentication protocols. You will draw up an action plan to correct the sticking points and ensure a high level of customer satisfaction. invisible path for your email ever more reliable.

8. Best practice for a smooth journey

• Maintain a healthy list. Regularly delete inactive or incorrect addresses.
• Systematically authenticate your domain (SPF, DKIM, DMARC).
• Keep an eye on your sender reputation via specialised tools.
• Diversify your content: alternate text, images and links, without triggering filters.
• Test your pre-sent campaigns to assess whether they have become spam.

By mastering these elements, you can guarantee invisible path for your email optimised and robust. Your recipients receive your message as intended. Your audience stays engaged, and your ROI rises.

9. Conclusion
The journey of your email from your workstation to your inbox is based on a precise sequence of protocols and checks. You now understand the invisible path for your emailand you have the technical and marketing keys to optimising it. By combining scientific rigour with attention to the user experience, you can create effective campaigns that are respected by filters. Don't wait any longer: apply these best practices to ensure that each of your messages reaches its target audience.

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