[ingo] Migration from procmail to sieve

[Joseba Torre]

Hi,

we've been using horde for some years. Until this summer we used 
procmail filters, but we've changed to sieve for performance reasons.

Everything is working fine, but we've found a difference; if in my 
.procmailrc I had

:0
* ^From:.*Joseba Torre
".JosebaTorre/"

in sieve I have

if address :all :comparator "i;ascii-casemap" :contains "From" "Joseba 
Torre"  {
     fileinto "JosebaTorre";
     stop;
}

The problem is that this second one doesn't work, because in sieve 
address is only joseba.torre at ehu.eus, no

Joseba Torre <joseba.torre at ehu.eus>

The solution to this is replacing 'address' with 'header', but I haven't 
found how to do this in ingo (for the From field).

Any ideas?