SubjectRewrite in 3.0.x

The syntax for enabling Subject rewriting has changed in 3.0.x, it is now a more generic rewrite_header option.

This is documented in the UPGRADE file:

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  Wiki Markup
  The "rewrite_subject" and "subject_tag" configuration options were deprecated and are now removed. Instead, using "rewrite_header Subject \[your desired setting\]". e.g.

  
  

rewrite_subject 1

subject_tag ****SPAM(SCORE)****

becomes

rewrite_header Subject ****SPAM(SCORE)****

Warning: if you are running SA through amavisd or qmail-scanner, those apps do their own message rewriting and SpamAssassin cannot perform these rewrites. Here is the FAQ entry for how to rewrite the subject in qmail-scanner.