Testing the m4 Configuration

Test the new configuration using the sendmail -bt command exactly as it was used earlier in this chapter. Listing 5.14 shows a test of the linux.cf file that we built with m4 macros.

Listing 5.14: Testing Address Rewriting

# sendmail -bt -Clinux.cf

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked) Enter <ruleset> <address>

> /tryflags HS

> /try smtp craig

Trying header sender address craig for mailer esmtp

> /tryflags HS

> /try smtp craig

Trying header sender address craig for mailer esmtp

canonify

input:

craig

Canonify2

input:

craig

Canonify2

returns:

craig

canonify

returns:

craig

1

input:

craig

1

returns:

craig

HdrFromSMTP

input:

craig

PseudoToReal

input:

craig

PseudoToReal

returns:

craig

MasqSMTP

input:

craig

MasqSMTP

returns:

craig <

@ *LOCAL*

>

MasqHdr

input:

craig <

@ *LOCAL*

>

canonify

input:

Craig .

Hunt

@

*LOCAL*

Canonify2

input:

Craig .

Hunt

<

@

*LOCAL* >

*LOCAL*: Name

server timeout

Canonify2

returns:

Craig .

Hunt

<

@

*LOCAL* >

canonify

returns:

Craig .

Hunt

<

@

*LOCAL* >

MasqHdr

returns:

Craig .

Hunt

<

@

foobirds .

org .

>

HdrFromSMTP

returns:

Craig .

Hunt

<

@

foobirds .

org .

>

final

input:

Craig .

Hunt

<

@

foobirds .

org .

>

final

returns

; : Craig

. Hunt

@

foobirds .

org

Rcode = 75, addr = [email protected],

. org

> /quit

This time, when the sender address craig is processed through the Extended SMTP mailer, the address is rewritten to [email protected] using the genericstable database that we created. Again, after running several tests, copy linux.cf to /etc/sendmail.cf.

Of course, this entire configuration depends on having the m4 source files on the Linux system. If your system doesn't have the m4 source files, you can download the latest sendmail distribution from ftp://ftp.sendmail.org/, where it is stored in the pub/sendmail directory. The distribution includes a complete sendmail m4 source tree.

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