Email Series

Sendmail & Email on AIX

Follow this seven-article path from architecture fundamentals through SMTP client setup, AWS SES relay, troubleshooting, and automated notifications. Each article includes practical commands and operational notes for AIX 7.x—work in order for a first build, or jump to troubleshooting when queues or delivery fail.

Start the SeriesArticle 1 — Email Architecture Architecture QuizChapter Completion Certificate at 70%+ Quiz CenterSendmail path quizzes and mock exams All ArticlesBrowse the full knowledge base
1

Understanding Email Architecture in AIX

MUA, MTA, MDA, DNS MX records and enterprise email flow.

→ 2

Understanding Sendmail in AIX

sendmail.cf, rulesets, mailers and queue processing.

→ 3

Installing Sendmail on AIX for Modern SMTP Authentication

Toolbox packages, SASL/TLS verification and dependencies.

→ 4

Configuring Sendmail SMTP Client

SMART_HOST, masquerading, access.db and TLS setup.

→ 5

AWS SES SMTP Authentication

Connect AIX sendmail to Amazon SES with AUTH and relay controls.

→ 6

Troubleshooting Sendmail

Queue hangs, DSN failures, DNS and TLS diagnostics.

→ 7

Automating Email Notifications

Cron alerts, mailx scripts and structured notification templates.

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