Hi There,

Thanks for the pointers and snippets, they are much appreciated.

The postfix file looks like this:

foo.com        VIRTUALDOMAIN
@foo.com       bob
bob@foo.com       bob
chris@foo.com       chris

bar.com        VIRTUALDOMAIN
@bar.com       bob
bob@bar.com       bob
chris@bar.com       chris
[download]

I need to: use the variable $domain which will contain e.g "foo.com", seek to the line that starts with foo.com, move down two lines, do a return, and then print $username\@$ddomain\t$username. So if the username is don and the domain is bar.com, i need the code to locate the line starting with bar.com, drop down to lines, do a return and then print so the postfix file will then look like:

foo.com        VIRTUALDOMAIN
@foo.com       bob
bob@foo.com       bob
chris@foo.com       chris

bar.com        VIRTUALDOMAIN
@bar.com       bob
don@bar.com    don
bob@bar.com       bob
chris@bar.com       chris
[download]

Cheers