Author

Suped

@suped

articles: 15
total claps: 0
top claps: 0
avg read: 4.8 min
active: 2026-06-08 → 2026-07-18

Wiki topics

SAF · Safety & Alignment · 4 🔒 · Cybersecurity · 3 🔭 · Astronomy & Space · 2 🥊 · Combat Sports · 1 📰 · Journalism & News · 1 LLM · Large Language Models · 1

Top tags

#dmarc ·15 #email-security ·14 #email-deliverability ·12 #spf ·8 #dkim ·7 #email-authentication ·7 #dns ·6 #cybersecurity ·3 #google-workspace ·1 #wordpress ·1

SU Suped

DMARC alignment failure: why SPF and DKIM can pass while DMARC fails

If the passing domain is not the visible From domain, the message still fails DMARC. Fix DKIM alignment first, then use SPF alignment where…

Jun 22, 2026 · 5 min read · 0 claps #dmarc #email-security #email-deliverability

DMARC alignment failure: why SPF and DKIM can pass while DMARC fails

SU Suped

Autotask email authentication: DMARC, DKIM, and SPF setup

Validate the sending domain, publish one SPF record and the Autotask DKIM CNAME, then verify alignment before enforcing DMARC.

Jul 18, 2026 · 5 min read · 0 claps #dmarc #email-security #email-deliverability

Autotask email authentication: DMARC, DKIM, and SPF setup

SPT TCH

SU Suped

Spamhaus CERT Insight Portal: how botnet C&C enrichment helps email teams

Spamhaus has updated its free CERT Insight Portal with richer botnet command and control reporting, JSON/API access, and broader alert…

Jun 16, 2026 · 5 min read · 0 claps #email-security #cybersecurity #email-deliverability

Spamhaus CERT Insight Portal: how botnet C&C enrichment helps email teams

SU Suped

DMARC p=reject policy: how to avoid deliverability issues

Move to enforcement with sender inventory, aligned DKIM or SPF, staged policy gates, and rollback rules before legitimate mail starts…

Jun 14, 2026 · 5 min read · 0 claps #dmarc #email-deliverability #email-authentication

DMARC p=reject policy: how to avoid deliverability issues

SU Suped

DKIM2 best practices draft: what email senders should do now

The June 18, 2026 working group draft points toward better handling of forwarding, mailing lists, replay, and message custody, but…

Jun 20, 2026 · 5 min read · 0 claps #dkim #dmarc #email-authentication

DKIM2 best practices draft: what email senders should do now

SU Suped

Cornerstone email authentication: DMARC, DKIM, and SPF setup

Configure tenant-specific SPF, account-managed DKIM, aligned domains, and staged DMARC enforcement.

Jul 14, 2026 · 5 min read · 0 claps #dmarc #email-security #email-deliverability

Cornerstone email authentication: DMARC, DKIM, and SPF setup

TCH MDA

SU Suped

Gravity SMTP credential leak: how email teams should respond

Patch Gravity SMTP, rotate exposed sending credentials, and use provider logs, DMARC reports, bounces, and blocklist monitoring to check…

Jun 18, 2026 · 5 min read · 0 claps #dmarc #email-deliverability #cybersecurity

Gravity SMTP credential leak: how email teams should respond

SCI TCH

SU Suped

Google Workspace rule abuse: how admins should audit after UNC6508

Google Workspace admins need to treat the UNC6508 report as a control-plane security problem, not an inbox placement problem. Google…

Jun 19, 2026 · 5 min read · 0 claps #google-workspace #email-security #dmarc

Google Workspace rule abuse: how admins should audit after UNC6508

SU Suped

DMARC tags, explained for operators

What each DMARC tag controls, which ones matter first, and how to move from monitoring to enforcement.

Jun 09, 2026 · 5 min read · 0 claps #dmarc #email-authentication #dns

SU Suped

DMARC record and policy examples that move safely to enforcement

Start with monitoring, fix SPF and DKIM alignment, then move through quarantine before reject.

Jun 08, 2026 · 5 min read · 0 claps #dmarc #email-security #email-deliverability

DMARC record and policy examples that move safely to enforcement

SU Suped

Attendance on Demand email authentication: DMARC, DKIM, and SPF setup

Attendance on Demand email authentication is not a copy-and-paste DNS job. A reliable setup starts with tenant-specific values from your…

Jul 17, 2026 · 5 min read · 0 claps #dmarc #email-security #email-deliverability

Attendance on Demand email authentication: DMARC, DKIM, and SPF setup

SU Suped

Should you change DMARC from p=none to p=reject?

Move to reject only after reports, sender ownership, SPF or DKIM alignment, and staged enforcement show what will keep working.

Jun 17, 2026 · 5 min read · 0 claps #dmarc #email-deliverability #email-authentication

Should you change DMARC from p=none to p=reject?

SU Suped

Freshdesk email authentication: set up DMARC, DKIM, and SPF

Freshdesk email authentication with aligned SPF, DKIM, real-message checks, and safe DMARC enforcement.

Jul 15, 2026 · 4 min read · 0 claps #dmarc #spf #email-security

Freshdesk email authentication: set up DMARC, DKIM, and SPF

SU Suped

DMARC p=none to p=quarantine or p=reject: when to switch

Switching a domain from DMARC p=none to p=quarantine or p=reject should be an evidence decision, not a calendar decision. The practical…

Jun 15, 2026 · 4 min read · 0 claps #dmarc #email-security #email-deliverability

DMARC p=none to p=quarantine or p=reject: when to switch

SCI AI

SU Suped

Brightspace email authentication: how to set up DMARC, DKIM, and SPF

Brightspace email should pass DMARC before course notifications, enrollment messages, announcements, and password workflows rely on a…

Jun 21, 2026 · 4 min read · 0 claps #dmarc #email-security #dkim