This FAQ is designed to answer common questions about sending e-mail from MVS.
What are my options for sending e-mail from MVS?
What is SMTP? What is its purpose?
What is RFC822?
What is MIME and why is it important?
What does a SMTP data stream consist of?
How can I send attachments?
How can I prevent users from pretending to be someone else when they send mail?
How does SMTP-Send insulate me from the various Internet Protocols?
How does SMTP-Send insulate me from the various Internet Protocols?
SMTP-Send uses RFC821 and RFC822 protocols to send mail but uses an easily understood and programmed control statement interface for specifying the information required by the RFC821 and RFC822 protocols. When binary data is being transmitted, SMTP-Send automatically uses the appropriate MIME protocols to preserve the data fidelity and ensure that the data arrives at the receiving end correctly.

Where can I get more information about the IBM SMTP Server?
Do I have to use the IBM SMTP Server?
My SMTP server doesn't recognize the @ character in my e-mail addresses. How can I send mail?
How can I get my SMTP Server to relay all mail to another SMTP mail server?
How do I prevent spammers from hijacking my IBM SMTP Server?
How can I tell who's sending e-mails?