🚀 go-pugleaf

To the sed users - I am trying to have a simple sed script scan
the mailbox and output only messages that contain certain keywords.
I have RTFM'd, but something is still escaping me.  I match the message
multiline space okay, but seem only to be able to print the matched
line, not the whole message.  I invoke sed with "-n" option.  Here is
the script:

/^From\ .*[1-2][0-9][0-9][0-9]$/,/!^From\.*[1-2][0-9][0-9][0-9]$/
{
        N
        /pattern/p
}

I tried probably about 20 different ways of putting commands inside
the braces, the above is a simplified version, none of them worked.
I am sure it is dog gone simple, and I am simply not seeing it...

Thanks,

Tony