On 2025-02-03 05:44, Hans-Martin Mosner via mailop wrote:
I usually report them via Spamcop
That worked really well. It felt weird reporting them as spam to
spamcop, but it worked. Thanks for the tip!
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On 2/3/25 3:41 AM, Doug via mailop wrote:
What is The Way™, if any, to deal with backscatter?
Take a look at milter-null from SirWumpus / Anthony Howe / SnertSoft:
Link - SirWumpus / milter-null
- https://github.com/SirWumpus/milter-null
milter-null works by adding a header to outgoing messa
Am 03.02.2025 um 04:41:00 Uhr schrieb Doug via mailop:
> It's backscatter from a phishing campaign. At first, I tried to
> contact the server owner through their abuse@ account. They have us
> blocked for ... "sending spam". (is this characteristic? do
> blocklists not do SPF verification? can som
I usually report them via Spamcop and add their IPs and/or domain names into
our local blocklist.
If this causes issues with legitimate mail from them, they can use the link
that we give in every SMTP error reply to contact us. I just don't have time to
educate mail ops who didn't request it.
C
About 24 hours ago, I started receiving hundreds of "failure notice"
emails from an external mailer daemon.
I was concerned that this was due to some kind of compromise on my
server. It was not - nothing weird with logins or anomalous IPs or
anything that would indicate compromise on our end.
