Consider the possibilities
Why this name?
A closer look at autosmtp.com. These are possible directions for a new project, not descriptions of an existing business or services included in the sale.
The idea behind the name
The name pairs an automation cue with the SMTP email-transfer acronym. It gives an email-focused project a compact technical identity without implying that software, delivery infrastructure or service guarantees are included.
Possible directions
An independent email-automation utility, SMTP configuration guide or mail infrastructure publication.
Spelling and presentation
The name before .com has 8 characters, with no hyphens or numbers.