Re: [exim] The Google Lie

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著者: Kai Bojens
日付:  
To: exim-users
題目: Re: [exim] The Google Lie
Am 13.02.19 um 01:46 schrieb Christian Balzer via Exim-users:

> So why do we see those failures then?
>
> As it turns out, Google uses Spamhaus (they're a customer, but won't admit
> to using their RBLs in public) and in particular checks mails for their
> origin IP against XBL (CBL).
> All the rejects come from otherwise squeaky clean mails that originated
> from XBL'ed IPs, which is when using hot spots or cable networks with few
> outside IPs of course a high probability.
>
> So Google:
> a) lies, the error is based on the origin-IP.
> b) implies that it would ignore the bad origin if it were DKIM signed or
> from a SPF'ed domain.


I disagree. We also had rejected mails from one customer who had no SPF
configured but also did not send from any Spamhaus listed IP addressess.
Afer adding the SPF record all the mails went through without any
problems. This does of course not prove anything, but I don't see any
hints for blacklists behind the scenes.