On Wed, May 26, 2004 at 05:48:16PM +0200, Luca Ferrari wrote: > Hi, > I use sendmail to send automatic emails from servers to my mailbox, to get > information about disk status, etc. Now it seems as several mail providers > are stopping incoming mails from machines not registered as mail machines. Is > there a way to avoid this? I understand that this way of blocking is to > prevent spammers, but it is quite bothering if you want to use sendmail for > "fair" uses. Many mail servers require sender to be registered in "reverse DNS". Look: web@dimss:~$ host gw gw.solutions.lv has address 159.148.92.164 web@dimss:~$ host 159.148.92.164 164.92.148.159.in-addr.arpa is an alias for 164.nite.lv.92.148.159.in-addr.arpa. 164.nite.lv.92.148.159.in-addr.arpa domain name pointer gw.solutions.lv. web@dimss:~$ Here 159.148.92.164 is mapped to gw.solutions.lv in "reverse zone". Ask your provider to add record like this for your IP-address. -- I am a viral sig. Please copy me and help me spread. Thank you. - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html