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[Christos Ricudis]

On Fri, 02 Apr 2004 10:12:37 +0300
"Μπαλάσκας Ευάγγελος (Balaskas Euaggelos)"	<ebalaskas at edu.teiath.gr> wrote:

> Με προβληματίσατε αρκετά μπορώ να πω.
> 
> Πως μπορώ να έχω μεγαλύτερη ασφάλεια χρησιμοποιώντας το HELO του 
> sendmail, ώστε να περιορίζω την πρόσβαση σε spammers;

Aploustata, doulepse KI ESY gia thn idanikh koinwnia sthn opoia o ka8enas mas 8a exei ena /48 IP allocation sto spiti tou, ki ena subdomain me full DNS authority diko tou xwris periorismous. 

Prin ftasei ayth h mera, de mporoun na ginoyn kai polla me to HELO. 

Synh8ws einai arketo na kopseis aplws to relay (by default einai off). 
Twra, to RBL DEN koitaei sthn pragmatikothta domains, ta opoia mporei na einai o,ti na nai - koitazei mono IP blocks, poy einai h monh sigourh phgh gia to apo poy sou rxetai to mail :
 
Received: from komodino.itc.auth.gr (komodino.itc.auth.gr [155.207.130.36]) by iceberg.hellug.gr (8.12.9/8.12.9/Debian-5) with ESMTP id i326qcdl032741 for <linux-greek-users at lists.hellug.gr>; Fri, 2 Apr 2004 09:52:39 +0300

To komodino.itc.auth.gr mporw na to kanw o,ti 8elw. whitehouse.gov, goatse.cx, boners.com, peftoulas.org, mx.stileproject.com, mail.xxxvirginsbestialitywithlittlefurryanimalsonline.com, o,tidhpote - kai na prosperasw opoiodhpote check sou sto /domain/. To IP omws den to allazw etsi eykola - kai ayto phgainei kai koitazei to RBL. 

-- 
Christos Ricudis				ricudis at itc.auth.gr
Systems Administrator				+30-2310-998305
IT Support Center
Aristotles University of Thessaloniki, GREECE