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Re: [suse-security] Fwd: Undelivered Mail Returned to Sender
It's off topic for this list and I won't post again, but there are
mechanisms in SPF for your scenerio.
----- Original Message -----
Sent: Friday, June 04, 2004 9:49 AM
Subject: Re: [suse-security] Fwd: Undelivered Mail Returned to Sender
> Quoting Markus Gaugusch <markus@xxxxxxxxxxx>:
> > To prevent spoofing, you can enable SPF for your domain (SuSE should do
> > as well, and also everybody else who reads this). See
> > for more information.
> > Basically, SPF means that you insert a TXT record into your DNS zone
> > specifies which IP-addresses and MX servers are allowed to send mail
> > a FROM that contains your domain name.
> SPF breaks forwarding. My domains used to publish SPF info until my
> started complaining. If anyone from your domain sends mail to someone who
> a forwarding service (very common in virtual domain setups), your mail
> For instance, let's say I own foo.com, and have it hosted at a hosting
> having any mail sent to it forwarded to my local ISP mail account. A
> typical setup for a domain owner of a small set. If my local ISP uses
> will no longer recieve mail sent to foo.com.
> My friend Bob sends the mail to foo.com, which then sends it to me. The
> Bob's domain doesn't list foo.com. My mail gets dropped.
> SPF is SERIOUSLY flawed. Security is about getting the legitimate through
> blocking the bad. SPF fails on this account.
> Check the headers for your unsubscription address
> For additional commands, e-mail: suse-security-help@xxxxxxxx
> Security-related bug reports go to security@xxxxxxx, not here
Check the headers for your unsubscription address
For additional commands, e-mail: suse-security-help@xxxxxxxx
Security-related bug reports go to security@xxxxxxx, not here