smtpscript

smtpscript is a tool to write SMTP scenarios and easily implement regression tests for SMTP server-side implementations.

A smtpscript will look like:

# this is a function init-helo that we want to call in all our regress tests
proc init-helo {
    expect smtp ok
    writeln "HELO regress"
    expect smtp helo
}

# each of the test-case will be called sequentially
test-case name "mailfrom.empty" {
    call init-helo
    writeln "MAIL FROM:<>"
    expect smtp ok
}

test-case name "mailfrom.broken" {
    call init-helo
    writeln "MAIL FROM:< @bleh>"
    expect smtp permfail
}

which once executed, produces the output:

$ smtpscript foo                                
===> running test-case "mailfrom.empty" ok
===> running test-case "mailfrom.broken" ok
===> all run
passed: 2/2 (skipped: 0, failed: 0, error: 0)
$

The scripting language also supports TLS, randomization and loops, so fairly complex scenarios can be achieved.