Developer guides for sending email.

Developer Guides 21 Sep 2026

Prevent Duplicate Transactional Emails with Idempotency

Stop double receipts and reset emails after timeouts and queue retries. Store a unique send intent before POST /emails. Arawa Mail does not document an Idempotency-Key header today.

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Developer Guides 20 Sep 2026

OTP Email Deliverability: Make Verification Codes Arrive Fast

Fix OTP email deliverability: send codes from a dedicated From on a sending-active domain, keep the message short, avoid bulk queues, and confirm the API accepted the send.

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Developer Guides 19 Sep 2026

Password Reset Email Deliverability Best Practices

Fix password reset email deliverability: authenticated From, sending-active domain, short template, no marketing mix, safe retries, and a support-visible send log.

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Developer Guides 18 Sep 2026

WooCommerce Transactional Email Deliverability Checklist

WooCommerce logs “email sent” when wp_mail() returns. Fix php mail(), align the From domain, authenticate DNS, split marketing, and watch real delivery events.

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Developer Guides 17 Sep 2026

How to Configure WordPress SMTP with a Custom Domain

WordPress “message sent” is not delivery. Configure authenticated SMTP or an HTTP sending API so form and reset mail leaves from your custom domain.

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Developer Guides 08 Sep 2026

HTML Email That Survives Dark Mode and Gmail Inversion

Build transactional HTML emails that stay readable in Gmail dark mode, Apple Mail, and Outlook. Use tables, explicit colors, progressive enhancement, and plain-text fallbacks with ArawaMail.

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Developer Guides 28 Aug 2026

Amazon SES Sending Limits and Quotas Explained (2026)

Understand Amazon SES daily quotas, send rates, sandbox limits, ThrottlingException errors, GetSendQuota, safe retries and quota increases.

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Developer Guides 27 Aug 2026

How to Move Amazon SES Out of the Sandbox

Request Amazon SES production access with a verified domain, clear sending use case, realistic quotas, and bounce and complaint handling.

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Developer Guides 26 Aug 2026

STARTTLS vs Implicit TLS for Email

STARTTLS vs implicit TLS (SSL) for SMTP and IMAP: how each works, which ports to use, and how to configure secure mail clients and applications correctly.

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Developer Guides 25 Aug 2026

SMTP Ports 25, 465, and 587 Explained

Port 25 is for server-to-server relay and is often blocked for clients. Ports 465 (implicit TLS) and 587 (STARTTLS) are the modern submission ports. Here’s when to use each and how ArawaMail configures SMTP.

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Developer Guides 23 Aug 2026

Transactional email webhooks in Laravel and Next.js

Handle email webhooks in Laravel and Next.js: signed requests, retries, bounces, complaints, and the same events support already sees in the workspace.

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Developer Guides 23 Aug 2026

Send transactional email from Next.js

Send transactional email from Next.js: App Router route handler, env API key, product-domain From, receipts, password resets, errors, and idempotency.

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