RE: [cobalt-users] Form to mail

[Fabrice Prémel <fabrice@xxxxxxxxxx>]

>Sep 26 11:57:36 qube sendmail[13354]: LAA13354:
>ruleset=check_mail, arg1=<steve@xxxxxxx>, relay=[199.107.83.178],
>reject=501 <steve@xxxxxxx>... Sender domain must exist
>Sep 26 11:57:36 qube sendmail[13354]: LAA13354:
>from=<steve@xxxxxxx>, size=0, class=0, pri=0, nrcpts=0,
>proto=ESMTP, relay=[199.107.83.178]

[fabrice@localhost fabrice]$ resolveip csi.com
resolveip: Unable to find hostid for 'csi.com': no_data

In order to accept relaying, sendmail will try a DNS query. If it 
fails, it'll not accept the mail.

>
>My quick hack was to comment out the 501 ruleset error in
>sendmail.cf. However, this is not the desired solution... Any
>help would be greatly appreciated... -Scott.
>

Check your DNS settings. Sendmail will only accept to relay if it 
looks like some real mails, and not some faked one. And a 
non-existent domain name is one of its rule.

Hope that helps,

Fabrice Prémel.