Receivers silently ignore a malformed DMARC record. Common culprits: You should see exactly one line starting "v=DMARC1;". Without it, compliant receivers drop the report. This is the most common reason third-party report inboxes stay empty. Aggregate reports arrive as zipped…
If you're building any tool that sends email — whether it's transactional notifications, marketing campaigns, or cold outreach — deliverability is the invisible layer that determines whether your emails actually reach inboxes. Here's a practical checklist for developers who want to get…
Marketers write the trigger in one sentence. Mailazy sends the email when a user does something, or stops, and shows whether it worked. The problem: users get stuck, and the email arrives on the wrong day Most lifecycle emails still…
Not sure if a police call is legit? From Monday (Nov 2), all outgoing calls from the Singapore Police Force (SPF) will use the single caller ID number, 6000 0999, to help the public distinguish legitimate police calls from scams. Each call will…
A domain with no authentication lets anyone send mail that appears to come from you. Closing that gap takes three DNS records and a few weeks of watching reports. The hands-on work fits in about 75 minutes, and the waiting is…
One-click unsubscribe is a requirement for bulk senders at the large providers, and the usual... Tagged with backend, privacy, security, webdev. #what-the-link-should-carry What the link should carry A signed token containing the contact id, the scope (marketing, product, all), and…
A DMARC rua address receives XML reports from receivers describing every message they saw claiming to be from your domain: source IP, alignment result, and the policy action taken. It is unglamorous, it is the only data that comes from…
Sending your first transactional email from a new domain is where most launches quietly lose their first hundred signups. Not because the code is wrong, but because the domain has no reputation and the DNS records are half done. Send…
Start with DNS. A DKIM verification failure in a Node.js email integration is usually a domain-setup problem, not an application retry problem: the provider must find the right public key at the expected DNS record, and that record must…
DKIM/SPF/DMARC, spam filtering, warmed IPs, and content/reputation signals.
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