Notes from the email trenches.
Deliverability, DNS, protocols, pricing. Written by the team building JustEmails.
Fix Email Reputation on a Purchased Domain (2026)
Inherited bad email karma? Fix it before your invoices hit spam.
Email Alias vs Forwarding (2026): Fix the Routing Mess
Email alias vs forwarding — one breaks SPF, one doesn't. Learn when to use each.
DKIM Shows 'none' or Unsigned? Fixing Authentication for Third-Party Senders
When your CRM, helpdesk, or invoicing tool sends email as your domain but shows DKIM 'none' or unsigned — DMARC fails. Here's how to fix it: publish the vendor's DKIM selector, verify via show-original, and use the subdomain delegation pattern when necessary.
Email Arriving Hours Late? Greylisting and Retry Queues Explained
That urgent email showed up 4 hours late. Greylisting and retry intervals explain why.
Email Ports Explained: 25, 465, 587, and 993 — When to Use Each
Email ports 25, 465, 587, 993 — which goes where and why ISPs block port 25.
Email Forwarding Services vs Real Mailboxes in 2026: When Forwarding Stops Being Enough
Forwarding works until it doesn't. Here's the honest breakdown on when ImprovMX/Cloudflare-style forwarding makes sense — and when you need actual mailboxes.
Email Deliverability Trends 2027: Auth, AI Filters & What to Expect
2027 email trends: stricter auth, smarter AI filters, engagement-weighted placement.
Email Hosting Cost Statistics 2026: What Businesses Actually Pay Per Mailbox
Email hosting cost benchmarks for 2026. The spread is 40x—most SMBs don't know where they fall.
DMARC Adoption Statistics 2026: Who Enforces, Who Lags, and Why
Sourced statistics on global DMARC adoption in 2026: Fortune 500 vs SMB enforcement rates, p=none vs p=reject splits, and what the Gmail/Yahoo mandates actually changed. Every figure cited.
What Switching Email Providers Really Costs: Time, Risk, and Money
Real cost of switching email providers: hours per mailbox, MX cutover risk, deliverability warm-up. Worked examples at 5 and 20 mailboxes.
Consolidate Email Providers: Mailboxes + API on One Host (2026)
Three email bills, three DNS surfaces. Here's how to collapse them.
Wiring JustEmails SMTP into Django Auth for Verification and Reset Mail
Configure Django's EMAIL_BACKEND with JustEmails SMTP credentials for account verification, password resets, and other auth emails that actually land in inboxes.