If you have access to the mail server, you could use a spam filter to append an identifier to the subject line that would allow a filter in your client to move or delete them without downloading.

Hello,

I use Spamhalter and  its quite good to filter spam. But I have to download mails from my pop servers.

Would it be possible to activate it with selective download, often, email address and subject is really sufficient...

Thanks

Regards

Alexandre 

[quote user="amoradell"]

But I have to download mails from my pop servers.

[/quote]

Spamhalter is a text classifier and needs the whole message to decide if it's spam or ham.

[quote user="amoradell"]

[...] often, email address and subject is really sufficient...

[/quote]

The email adress contains a lot of random stuff. Only parts of it can be helpful.

A decision based on such a small text corpus (subject line and email adress) means a

higher probability of misclassifications and is a little bit shaky.

So, a simple filter would be more appropriate... but it's working after downloading the whole message.

Subject is really appropriate when you have spam "en masse".

I use Poptray for this kind of filtering and its quite good (it has regex also).