On Thu, 11 May 2006, Rob Arends wrote:
> Recently I enabled "CheckMailerDomain" "1" in SERVER.TAB.
> To:
> "Enable validation of the sender domain ('MAIL FROM:<[EMAIL PROTECTED]>') by
> looking up DNS/MX entries."
>
> All was doing the correct thing, until a user complained of no email from a
> certain source.
>
> I found that the user had an email address elsewhere and had a rule set to
> fwd any email to her account here.
> Sounds simple and legit.
>
> The problem arose when those emails started getting "SNDR=ENODNS" in the
> SMTP log.
>
> I found that the postmaster for the forwarding domain becomes the sender in
> the server based fwd rule.
> Again not a problem, except when they haven't set their postmaster address
> correctly.
> They use [EMAIL PROTECTED], where the usual domain for the site is
> domain.com.
> Obviously the 'host' part is the actual server (from a pool) that processed
> the email.
>
> Now I've tried to talk to this company before to teach them the error of
> their ways, but alas they are deaf.
>
> So I have to resort to a local solution.
> I thought of SMTP.IPPROP.TAB
> And set (example) "192.168.0.7/32" "WhiteList=1"
>
> But that did not work. The doco says:
> WhiteList
> If set to 1 and if the peer IP matches the address mask, all peer IP
> based checks will be skipped.
>
> So perhaps this is not seen as an IP based check.
>
> SMTPRELAY.TAB might be another option, but I doubt it.
>
> For the moment I've disabled the CheckMailerDomain option, but I'd really
> like to turn it on again.
>
> Davide, is there a way to WhiteList a server for ALL lameness checks, or at
> least the CheckMailerDomain check?
I guess it could be possible, yes.
- Davide
-
To unsubscribe from this list: send the line "unsubscribe xmail" in
the body of a message to [EMAIL PROTECTED]
For general help: send the line "help" in the body of a message to
[EMAIL PROTECTED]
