Guides and notes for people who send email.

DNS & Deliverability 31 Aug 2026

SPF 10 DNS Lookup Limit: Avoid PermError | ArawaMail

SPF evaluation stops after 10 DNS-querying terms. Learn what counts toward the limit, why multiple v=spf1 records fail, and the cleanup order that fixes permerror without fragile flattening.

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Business Email 31 Aug 2026

Should You Use a Catch-All Inbox? | ArawaMail

Catch-all mailboxes catch typos and legacy addresses—but also spam. Learn ArawaMail’s default posture, resolution order, and the decision rule for when to turn catch-all on.

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DNS & Deliverability 30 Aug 2026

Amazon SES Suppression Lists: Account, Config Set, and Tenant

SES accepted the send but the receipt never arrived. Map the global, account, configuration-set, and June 2026 tenant suppression lists — and how to look up or remove one address safely.

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Business Email Setup 30 Aug 2026

How to Move Business Email Off Google Workspace

Leave Google Workspace mail without a panic weekend: dual delivery on Google first, MX cutover to ArawaMail, keep transactional sending on the same domain, and be honest about Calendar and archives.

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DNS & Deliverability 29 Aug 2026

How to Verify a Domain in Amazon SES (Easy DKIM)

Verify an Amazon SES domain identity with Easy DKIM CNAMEs, optional BYODKIM, and custom MAIL FROM. Fix Pending verification and Cloudflare flattening mistakes.

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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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Email Strategy 28 Aug 2026

Stop Treating Transactional Mail as a Side Project

Build a reliable transactional email strategy for password resets, receipts and alerts with ownership, logs, retries, sender policy and capacity.

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Email Strategy 27 Aug 2026

Your Domain Is the Product — Especially Before Q4

Protect your email domain reputation before Q4. Learn how authentication, sender isolation, list quality, and steady volume protect inbox delivery.

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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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DNS & Deliverability 26 Aug 2026

From, Reply-To, and Return-Path: What Each Email Header Does

From vs Reply-To vs Return-Path: what each header controls for replies, bounces, and domain alignment—and how to set them correctly for deliverability.

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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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