Jens Sonnenborg • December 12, 2024

Why we recommend better email security


Many companies own 5-10 domain names, but only actively use 1-2 for sending emails. Even though you may not be sending emails from all your domains, it's still important to protect them. Here's why:

DMARC: Email Security Essentials


Think of your domains like your online identity. Criminals can exploit unprotected domains to send fake emails (phishing) that appear to come from your company. This can damage your reputation and lead to financial losses for your customers.


DMARC helps prevent this by verifying that emails that appear to come from your company are actually legitimate.

How it works:


 

  • SPF: A list of authorized servers allowed to send emails on behalf of your domain.
  • DKIM: A digital signature that verifies the email truly originated from your domain.
  • DMARC: Combines SPF and DKIM and tells the recipient's email system what to do with emails that fail these checks (e.g., send to spam or reject).

 

Unprotected domains are vulnerable:


Even if you only send emails from your .com address, criminals can still abuse your unused .net or .org domains to send phishing emails. This damages your overall domain reputation, making it harder for your legitimate emails to reach your customers' inboxes.


Protecting your domains benefits everyone:


By securing your domains with DMARC, you not only protect your own reputation but also contribute to a safer online environment for everyone. There are options available to deactivate or block sending from unused domains.

Let's work together for a better internet.





Hvorfor vi anbefaler bedre e-mail sikkerhed:

Mange virksomheder ejer 5-10 domænenavne, men bruger kun 1-2 aktivt til at sende e-mails. Selvom du måske ikke sender e-mails fra alle dine domæner, er det stadig vigtigt at beskytte dem. Her er hvorfor:

DMARC: Essentiel e-mail sikkerhed


Tænk på dine domæner som din online identitet. Kriminelle kan udnytte ubeskyttede domæner til at sende falske e-mails (phishing), der ser ud til at komme fra din virksomhed. Dette kan skade dit omdømme og føre til økonomiske tab for dine kunder.
DMARC hjælper med at forhindre dette ved at bekræfte, at e-mails, der ser ud til at komme fra din virksomhed, faktisk er legitime.


Sådan fungerer det:

 

  • SPF: En liste over autoriserede servere, der har tilladelse til at sende e-mails på vegne af dit domæne.
  • DKIM: En digital signatur, der bekræfter, at e-mailen virkelig stammer fra dit domæne.
  • DMARC: Kombinerer SPF og DKIM og fortæller modtagerens e-mail-system, hvad de skal gøre med e-mails, der ikke består disse kontroller (f.eks. sende til spam eller afvise).

 


Ubeskyttede domæner er sårbare:

Selvom du kun sender e-mails fra din .com-adresse, kan kriminelle stadig misbruge dine ubrugte .net- eller .org-domæner til at sende phishing-e-mails. Dette skader dit overordnede domæneomdømme, hvilket gør det sværere for dine legitime e-mails at nå dine kunders indbakke.

Beskyttelse af dine domæner gavner alle:

Ved at sikre dine domæner med DMARC beskytter du ikke kun dit eget omdømme, men bidrager også til et sikrere online miljø for alle. Der er mulighed for at deaktivere eller blokere afsendelse fra ubrugte domæner.

Lad os arbejde sammen for et bedre internet.






Share

Any question? Find us on

SKYtek in Spain
By Jens Sonnenborg April 21, 2026
SKYtek in Valencia offers cloud computing & IT security solutions. Enhance your business with our automation services. Contact us today!
Asegúrate de que el atributo ALT de tu imagen principal sea: Infografía sobre riesgos de Shadow AI.
By Anca Florea April 13, 2026
¿Es segura la IA gratuita? Descubre qué es la Shadow AI y cómo el uso de herramientas no autorizadas pone en riesgo la privacidad y los secretos de tu negocio.
Hiring Consultant
By Anca Florea February 23, 2026
✨Discovering the Gems of Gemini Advanced: A Weekly Exploration✨
Sentiment Analyser
By Anca Florea February 22, 2026
The "Sentiment Analyser" Gem: Your AI-Powered Emotional Intelligence Hello again, Gemini adventurers! We’re continuing our journey through the specialized tools that make Gemini Advanced an essential part of your workflow. After exploring how to craft the perfect pitch, we’re shifting our focus from talking to listening. This week, we’re unveiling the "Sentiment Analyser" Gem - your personal expert in reading between the lines of every digital interaction. In a world of endless comments, reviews, and emails, it’s easy to miss the forest for the trees. The Sentiment Analyser doesn't just read words; it decodes the emotional frequency behind them, giving you the clarity to respond with empathy and precision. What is the Sentiment Analyser Gem? The Sentiment Analyser Gem is a specialized AI tool designed to process large volumes of text and categorize the emotional tone, intent, and underlying "vibe." It moves beyond simple "positive or negative" labels to identify nuance, frustration, urgency, and hidden opportunities. Here’s how this Gem can sharpen your intuition: Audit Customer Feedback: Instantly summarize hundreds of product reviews to find out what’s really driving customer satisfaction or frustration. Monitor Brand Health: Paste in social media threads or comments to see if the public perception of your brand is shifting in real-time. Refine Your Tone: Run your own drafts through the Gem to ensure your internal memos or public statements don't sound unintentionally defensive or cold. Identify "At-Risk" Accounts: Spot shifts in the tone of client communications before they lead to a cancellation. Why "Emotional Data" is Your New Superpower Data tells you what happened, but sentiment tells you why. A customer saying "It’s fine" in a support chat might be satisfied, or they might be one frustrated email away from leaving. The Sentiment Analyser helps you visualize these emotional shifts, allowing you to be proactive rather than reactive. Who Can Benefit from the Sentiment Analyser Gem? Emotional intelligence is a requirement for every department, especially: Customer Success Managers: Prioritize your day by identifying which tickets carry the highest emotional urgency. Community Managers: Keep an eye on your online communities and stop arguments before they get out of hand. Product Managers : Separate "constructive feedback" from "emotional rants" to build a roadmap that truly serves your users. Public Relations Teams: Estimate the emotional impact of a press release or a crisis response within seconds.