Hi all!
I've been searching and googling for some info but without any success so far,
so... I come to the list again for help.
Although I have static IP addresses for my mail servers (obviously) I've been
struggling with my ISP because for some stupid reason some RBL like SORBS
identify my addresses as DHCP addresses and therefore I've been getting
blocked. As I expect that my ISP will take a loooooonnnnng time before
understanding (and eventually solve) my problem I'm trying to have a quick fix
for my e-mail delivery problems.
I can use my ISP SMTP servers to relay all my mail and that way they'll not get
blocked. The problem with this is that my ISP demands that I authenticate at
the SMTP server with my internet account user credentials. I know sendmail has
this feature from scratch and I imagine that qmail has this as well. My problem
is that I cannot find where to configure this... Can anyone assist pelase?
Thanks in advance,
Fernando
PS: wouldn't SPF be a more reasonable approach that RBL's to fight SPAM???