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Webhook Implementation: Design, Security, and Best Practices (2026)
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Webhook Implementation: Design, Security, and Best Practices (2026)

DEV Community·丁久·22 days ago
#iAttqPvA
#webhook#webhooks#api#backend#signature#hmac

Complete guide to building webhook systems: event design, retry strategies (exponential backoff), idempotency, signature verification (HMAC), payload versioning, and monitoring. Code examples in Node.

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Unverified Sender

Reddit r/Emailmarketing·u/ConnectionConscious2·about 1 month ago
#E7NoxK7X

Hi everyone, We’re having an issue where emails sent through HubSpot are showing up in Microsoft/Outlook as “Unverified Sender.” This is creating a serious problem for our business because recipients are questioning whether our emails are legitimate.…

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The automation that's quietly killing your sender reputation

Reddit r/Emailmarketing·u/dread-pr·about 1 month ago
#WZhM1MAs

Evergreen sequences are the most dangerous deliverability risk most email marketers aren't thinking about. You build a welcome series or nurture sequence when your list is fresh and engagement is high. It performs well. You move on.…

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PhantomChat v3.0.0: PQXDH (ML-KEM-1024 + X25519) + MLS RFC 9420 + Monero stealth addresses in Rust — pre-audit, looking for crypto review

Cryptography news and discussions·/u/RepulsiveRepublic463·about 1 month ago
#8O6AyI02

Built and shipped a desktop messenger that stacks several privacy primitives in one wire format: **Envelope (Monero stealth model)** - Recipient publishes (view_pub, spend_pub) as `phantom: : ` - Sender's ephemeral r: - tag = HMAC(HKDF(r × view_pub,…

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