On Fri, May 31, 2024 at 06:22:03PM -0700, Brandon Long via mailop wrote:
> There's also nothing to prevent you from DKIM signing your bounce messages.
This can be a bit more complicated with, e.g., Postfix, because Postfix
tries to avoid potentially fragile content processing of bounces, so
in pa
There's also nothing to prevent you from DKIM signing your bounce messages.
"bounce" messages (nothing more than coming from a null sender) are often
used for spam. Gmail has always applied spam rules to them.
Brandon
On Mon, May 27, 2024 at 4:39 PM Kevin A. McGrail via mailop <
mailop@mailop.o
On 2024-05-31 09:35, Gellner, Oliver via mailop wrote:
Hi list,
there are countless online services which offer to verify email addresses and advertise
this as "we help you to prune your contact lists". Some of them, like
hunter[.]io or zerobounce[.]net, behave very similar to spammers in the
Dňa 31. mája 2024 15:35:36 UTC používateľ Alessandro Vesely via mailop
napísal:
>Lots of queries, aren't they? I only use Smpamhaus zen and DNSWL for
>whitelisting, for receiving SMTP. My own RBL blocks via iptables.
Note: my MSA is separated from MX, but both use the same (caching)
DNS serv
On Fri 31/May/2024 14:59:24 +0200 Slavko via mailop wrote:
Dňa 31. 5. o 11:51 Alessandro Vesely via mailop napísal(a):
What RBLs do you configure?
Beside my own RBLs i use DROP & AuthBL from SpamHaus, BIP from
virusfree.cz, and multiple codes from dronebl.org. They are queried
in paralel, t
Hi list,
there are countless online services which offer to verify email addresses and
advertise this as "we help you to prune your contact lists". Some of them, like
hunter[.]io or zerobounce[.]net, behave very similar to spammers in the past
and are going to great lengths to hide or spoof the
Dňa 31. 5. o 11:51 Alessandro Vesely via mailop napísal(a):
> What RBLs do you configure?
Beside my own RBLs i use DROP & AuthBL from SpamHaus, BIP from
virusfree.cz, and multiple codes from dronebl.org. They are queried
in paralel, thus count doesn't have big inpact.
But rejects based on RBL ar
On Thu 30/May/2024 23:12:17 +0200 Slavko via mailop wrote:
Dňa 30. mája 2024 19:56:01 UTC používateľ Michael Peddemors via mailop
napísal:
However, it isn't as simple as blocking every IP that bangs on your door. If
you block large CGNAT IP's for instance, one compromised IoT device behind
