Raj Kapoor This ToolTrusted study breaks down DMARC adoption by TLD — measured from live DNS across the top 10,000 domains in the Majestic Million in June 2026. Headline averages hide enormous variation: depending on the top-level domain, the share of sites that actually enforce DMARC ranges from 11.0% to 79.0%. Looking at DMARC adoption by TLD … Read more
S/MIME vs PGP for email encryption — the short answer: choose S/MIME if you are an organisation that needs native Outlook and Apple Mail support, compliance, and central key recovery; choose PGP if you are an individual who wants zero cost, no Certificate Authority, and sole control of your keys. Both deliver end-to-end email encryption … Read more
How to encrypt email with PGP (quick version): (1) pick a tool — Thunderbird has OpenPGP built in, while Gmail, Outlook.com and Yahoo need the Mailvelope browser extension (there is no native OpenPGP in Gmail or Outlook); (2) generate a PGP key pair (an Ed25519 key is the 2026 default); (3) publish your public key … Read more
How to set up S/MIME in Outlook (quick version): (1) get an S/MIME certificate from a CA as a password-protected .pfx file; (2) double-click the .pfx to import it into the Windows certificate store; (3) in classic Outlook open File → Options → Trust Center → Trust Center Settings → Email Security, click Settings under … Read more
The best email deliverability tools answer three different questions: will this message land in the inbox, what is my sending reputation right now, and why did a campaign go to spam? No single tool does all three well, so the right toolkit usually combines a placement tester, a reputation monitor and a spam-score checker — … Read more
Choosing the best DMARC software is really about choosing how much you want a tool to do for you: parse the raw XML reports your domain receives, identify which services are sending as you, and guide you safely from monitoring to full enforcement. The best DMARC software turns a flood of unreadable aggregate reports into … Read more
Gmail and Yahoo sender requirements (the short list): if you send roughly 5,000+ messages a day to consumer inboxes you must (1) pass SPF and DKIM and publish a DMARC record (at least p=none, aligned); (2) have valid forward and reverse DNS (PTR) on your sending IPs; (3) offer RFC 8058 one-click unsubscribe and honour … Read more
Is Mailjet worth it in 2026? Yes for developers and SMBs who need both transactional and marketing email from one account. Mailjet handles Mailjet SMTP and API sending plus newsletters, gives you unlimited contacts on every plan (so Mailjet pricing does not punish list growth), and has a real-time collaborative editor a whole team can … Read more
SendGrid Review 2026 — verdict at a glance: Twilio SendGrid is one of the most trusted names in email infrastructure, and this SendGrid Review 2026 rates it a strong pick for developers and high-volume senders who need reliable transactional email plus campaigns at scale. Its industry-leading deliverability reputation, robust API and SMTP relay, and deep … Read more
How to enable DNSSEC for email (quick version): (1) at your DNS host (Cloudflare, Route 53, your registrar’s panel) turn on zone signing — it generates the keys and gives you DS values; (2) publish the DNSSEC DS record at your registrar to complete the chain from the parent zone; (3) verify with dig DS yourdomain.com … Read more