Unsolicited mail

[jvtarb]

I have a problem with "OfferCatch.com" domain that send unsolicited e-mail to our customers, I have put this domain name in the file "deny" next y run "makemap" to insert this domain y "deny.db" file (my Sendmail 8.11.6 server checks this database for spamers)but it happen nothing. I try with "ofercath.com", "OFERCATCH.COM" etc. and in the "deny.db" database "makemap" always write "ofercath.com".
Do I need to modify somthing in the "sendmail.cf" file to check lower and upper case letters?
Someone can I help me? Thaks.

 

[jvtarb]

I have a problem with "OfferCatch.com" domain that send unsolicited e-mail to our customers, I have put this domain name in the file "deny" next I run "makemap" to insert this domain in the "deny.db" file (my Sendmail 8.11.6 server checks this database for spamers) but it happen nothing. I try with "offercath.com", "OFFERCATCH.COM" and its IP number etc. and in the "deny.db" database "makemap" always write "ofercath.com" why I run the command

# strings deny.db > out

and next I read the "out" file.

Do I need to modify somthing in the "sendmail.cf" file to check lower and upper case letters?
Someone can I help me? Thaks.

 

[jvtarb]

Sorry, I have had to write another time my question, because of some mistakes with my english. Tanks.