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Why e-mails from your domain land in spam, and how to fix it. We explain SPF, DKIM, DMARC and MX records in plain words, with example DNS entries. Articles show common mistakes such as too many SPF lookups, missing DKIM selectors or a DMARC policy that is never enforced. Each guide ends with the exact records to add or change. We also cover how to protect your domain from people sending e-mail in your name. Good e-mail authentication makes invoices, offers and password resets reach the inbox.
29 ก.ย. 2026 · อ่าน 8 นาทีBackscatter: Why You Get Bounces for Emails You Never Sent
Getting bounce messages for emails you never sent? That is backscatter from spoofed spam. Learn how to tell if you were hacked and how…
29 ก.ย. 2026 · อ่าน 7 นาทีDKIM Key Length: 1024 vs 2048 Bits and Long DNS Records
Should your DKIM key be 1024 or 2048 bits? Learn what the standard recommends, how to publish long keys in DNS without errors and…
29 ก.ย. 2026 · อ่าน 7 นาทีPlain Text vs HTML Email: Which Delivers Better?
Is plain text email better for deliverability than HTML? Learn what spam filters really check, when each format fits and how to build HTML…
29 ก.ย. 2026 · อ่าน 8 นาทีDomain Reputation vs IP Reputation in Email: What Counts
Mailbox providers judge both your sending IP and your domain. Learn how domain and IP reputation differ, how each is built and how to…
29 ก.ย. 2026 · อ่าน 8 นาทีApple Mail Privacy Protection: Why Open Rates Mislead You
Apple Mail Privacy Protection loads tracking pixels automatically, inflating open rates. Learn what it changes and which metrics to trust instead.
28 ก.ย. 2026 · อ่าน 8 นาทีEmail Setup for a New Business Domain: Get It Right on Day One
Starting a business or a new domain? Set up MX, SPF, DKIM and DMARC, website mail and sending habits correctly from day one, before…
27 ก.ย. 2026 · อ่าน 7 นาทีLinks in Emails: Tracking Domains, Shorteners and Deliverability
The links in your e-mails affect whether they reach the inbox. Learn how click tracking, shorteners and linked domains influence filters and what to…
26 ก.ย. 2026 · อ่าน 8 นาทีSPF Record Examples for Common Small Business Setups
Practical SPF record examples for Google Workspace, Microsoft 365, website mail, newsletter tools, own servers and parked domains, with the pitfalls to avoid.
24 ก.ย. 2026 · อ่าน 8 นาทีIs Your Email Encrypted? TLS and STARTTLS Explained Simply
Most e-mail is encrypted between servers with TLS, but not always and not end to end. Learn how STARTTLS works, how to check it…
23 ก.ย. 2026 · อ่าน 7 นาทีWhat Is Email Deliverability? A Plain-English Guide for Owners
E-mail deliverability explained without jargon: what decides whether your messages reach the inbox, why it matters for any business and where to start.
22 ก.ย. 2026 · อ่าน 8 นาทีHow to Protect Parked and Unused Domains from Email Abuse
Domains you never use for mail can still be spoofed. Learn the three DNS records that lock down a parked domain and how to…
21 ก.ย. 2026 · อ่าน 7 นาทีEmail Deliverability for Agencies: Managing Client Domains
Agencies often inherit client domains with broken e-mail setups. Learn how to audit, fix and monitor SPF, DKIM and DMARC across many client domains.