Stream Service || Mark Scholten escreveu:
For so far I know it isn't possible to have a TTL that is to low (if I may believe the RFC files). It is also impossible to have to many A-records. With both facts in mind I would suggest that you find an other method off detecting SPAM.
Never heard of a minimum TTL specified by RFCs ....Anyway, checking TTL would require that you always check domain NSs and not your DNS cache server. That would trash all the DNS cache traffic save, thus not making it a good idea.
The fact that real domains uses low TTLs also make this check a bad idea. Some applications, just like dynamic DNS stuff, HAS to use low TTLs.
--
Atenciosamente / Sincerily,
Leonardo Rodrigues
Solutti Tecnologia
http://www.solutti.com.br
Minha armadilha de SPAM, NÃO mandem email
[EMAIL PROTECTED]
My SPAMTRAP, do not email it
smime.p7s
Description: S/MIME Cryptographic Signature
