Mac OS X Server Rejects Mail with No Subject Line

Is Mac OS X Server 10.6 (Snow Leopard) rejecting your e-mail messages which lack a subject line? Mine was, and so does the default setting on Snow Leopard Server.

Here’s a quick fix:

1) First, stop the mail service.

2 Now, you’ll want to edit the header_checks file that’s utilized by postfix.
{code type=”html}
sudo nano /etc/postfix/custom_header_checks
{/code}

3) Next, you’ll see a line which says:
{code type=”html}
/^subject: *$/ REJECT empty subject header
{/code}

Comment out this line by adding a pound sign (#) at the beginning of the line.

4) Once you comment out this line, it should appear as:
{code type=”html}
#/^subject: *$/ REJECT empty subject header
{/code}

5) If you’re using nano or pico to edit the file, click Control+O to write the file. (Save and Exit).

6) Now, restart the Mail service and the server will no longer reject email with no subject line.

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Let me know if this solution works for you! Enjoy!

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