Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread John Levine via mailop
It appears that Chris via mailop said: >On 2022-05-13 12:57, Grant Taylor via mailop wrote: > >> I suspect that their $BLOCKING method has progressed to false positives >> as a way to get email administrator's attention. > >It's progressed to false positives because some people run mail servers

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Chris via mailop
On 2022-05-13 12:57, Grant Taylor via mailop wrote: I suspect that their $BLOCKING method has progressed to false positives as a way to get email administrator's attention. It's progressed to false positives because some people run mail servers who aren't parsing DNSBL return codes right. The

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Chris via mailop
The policy was implemented in March 2021 over a year ago. The 127.255.255.254 is the return code, not the IP queried. From https://www.spamhaus.org/news/article/807/using-our-public-mirrors-check-your-return-codes-now. A reminder As of March 2021, we will begin the implementation of the f

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Bastian Blank via mailop
On Fri, May 13, 2022 at 10:57:21AM -0600, Grant Taylor via mailop wrote: > Spamhaus has stated that they were going to disable access via high -- my > words -- open public recursive resolvers since the very first message they > published about this 3-6 months ago. I'm pretty sure I've read that er

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Mark E. Jeftovic via mailop
We're seeing these for localhost netblock, which seems kinda odd... Error: open resolver; https://www.spamhaus.org/returnc/pub/127.255.255.254 On 2022-05-13 12:32 PM, Jarland Donnell via mailop wrote: > I'm not sure if the rest of you are seeing the same, but I've seen a > lot of errors like thi

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Slavko via mailop
Dňa 13. mája 2022 17:01:14 UTC používateľ Grant Taylor via mailop napísal: > From memory, their upper bound for the free DQS was something on the >order of 10,000 queries per day. I suspect there's even a little fudge >room therein. While i understand, that one have to save own resources, an

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Jarland Donnell via mailop
Could be luck of the draw but I hadn't actively seen any prior to 2 weeks ago. A reasonably large web host in Canada was the first I saw, and since then it's just been a trickle of little hosts or individually managed servers. On 2022-05-13 11:51, Al Iverson via mailop wrote: This isn't reall

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Grant Taylor via mailop
On 5/13/22 10:51 AM, Al Iverson via mailop wrote: It's also not hard to get a free DQS key from Spamhaus for low volume usage: https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/ I recommend it, as they guide you through extra steps to get the most out of the Spa

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Grant Taylor via mailop
On 5/13/22 10:32 AM, Jarland Donnell via mailop wrote: 554 Service unavailable; Client host [mail-108-mta215.mxroute.com] blocked by sbl-xbl.spamhaus.org; Error: open resolver; https://www.spamhaus.org/returnc/pub/74.63.16.232 It seems that Spamhaus is cracking down on a certain type of activi

Re: [mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Al Iverson via mailop
This isn't really new but I guess it's good to keep banging the drum. I blogged about it back in January - https://www.spamresource.com/2022/01/querying-spamhaus-via-cloudflare-dns.html It's clear to me that Spamhaus has long taken a dim view of querying via public resolvers; but their strategy to

[mailop] Spamhaus "open resolver" errors

2022-05-13 Thread Jarland Donnell via mailop
I'm not sure if the rest of you are seeing the same, but I've seen a lot of errors like this lately: 554 Service unavailable; Client host [mail-108-mta215.mxroute.com] blocked by sbl-xbl.spamhaus.org; Error: open resolver; https://www.spamhaus.org/returnc/pub/74.63.16.232 It seems that Spamh

[mailop] New Breezeline Mail Servers

2022-05-13 Thread Brad Peruski via mailop
    Greetings All,   Just an informational message that we are going to begin migrating mail accounts from various platforms to a new one.  The new IP's for this platform are as follows.  Unfortunately, we did not get the time we wanted to warmup the IP's and for this we apologize and ask for