Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

On 30.04.2024 at 12:34 Stefan Bauer via mailop wrote: knauf.com is accepting much of our delivered mails, however afterwards probably drop them as recipients reported via phone, that none of the mails arrive in their mailboxes. Mail to postmaster@ and a known contact at knauf

Re: [mailop] Anyone From Microsoft That Can Give Some Guidance?

Are you sure it’s Office365 and not “Consumer” Outlook/Hotmail accounts. Because the systems are not the same, and have different escalation procedures. Aloha, Michael. -- Michael J Wise Microsoft Corporation| Spam Analysis "Your Spam Specimen Has Been Processed." Open a ticket for Hotmail

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

On 2024-04-30 04:44, Mendel Kucharzeck via mailop wrote: Laura, Thanks for your reply! Highly appreciated. Inline: - Anyone else seeing this behaviour from gmail recently? - Could the newly created, custom MAIL-FROM-domain cause a behaviour like this? The MAIL-FROM-Domain has not yet been use

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Dnia 30.04.2024 o godz. 14:44:32 Matus UHLAR - fantomas via mailop pisze: > OTOH, UCEPROTECT-L3 is a strong sign there's something bad with the > ISP and/or its customers (same as UCEPROTECT-L2). > > Of course you should only use it at SMTP level if feel your mission > is to educate ISPs (or, not

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

Laura, Again, thanks for your insights! Inline: - Anyone else seeing this behaviour from gmail recently? - Could the newly created, custom MAIL-FROM-domain cause a behaviour like this? The MAIL-FROM-Domain has not yet been used before, but the sending email address was the s

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Dnia 30.04.2024 o godz. 14:05:00 Stefan Bauer via mailop pisze: Wow. Indeed. Thank you. The ip is 217.160.0.245 and yes, the complete ASN is blocked. On 30.04.24 14:18, Jaroslaw Rafa via mailop wrote: That's why nobody should treat UCEPROTECT seriously (also due to highly suspicious behavior o

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Am 30.04.2024 um 14:18:17 Uhr schrieb Jaroslaw Rafa via mailop: > That's why nobody should treat UCEPROTECT seriously (also due to > highly suspicious behavior of the people who run this blacklist - > their de-listing practices are de facto a money extortion scheme), They delist IP addresses 7 da

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

> On 30 Apr 2024, at 12:44, Mendel Kucharzeck via mailop > wrote: > > Laura, > > Thanks for your reply! Highly appreciated. Inline: > >>> - Anyone else seeing this behaviour from gmail recently? >>> - Could the newly created, custom MAIL-FROM-domain cause a behaviour like >>> this? The MAIL

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Dnia 30.04.2024 o godz. 14:05:00 Stefan Bauer via mailop pisze: > Wow. Indeed. Thank you. The ip is 217.160.0.245 and yes, the complete ASN > is blocked. That's why nobody should treat UCEPROTECT seriously (also due to highly suspicious behavior of the people who run this blacklist - their de-list

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Am 30.04.2024 um 14:05:00 Uhr schrieb Stefan Bauer: > Wow. Indeed. Thank you. The ip is 217.160.0.245 and yes, the complete > ASN is blocked. I recommend choosing another ISP that doesn't host so much spammers or using whitelisted.org. -- kind regards Marco Send unsolicited bulk mail to 171447

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Wow. Indeed. Thank you. The ip is 217.160.0.245 and yes, the complete ASN is blocked. Am Di., 30. Apr. 2024 um 13:50 Uhr schrieb Marco Moock : > > Am 30.04.2024 um 12:28:50 Uhr schrieb Stefan Bauer via mailop: > > > Sender-Domain IP is in UCEPROTECTL3, however none of his sending > > systems. Bad

Re: [mailop] any postmaster or contact to knauf.com around? delivery issues

Am 30.04.2024 um 12:28:50 Uhr schrieb Stefan Bauer via mailop: > Sender-Domain IP is in UCEPROTECTL3, however none of his sending > systems. Bad thing is, that this is one of the cluster-ips from > IONOS/1&1, so many of our senders, having their domains hosted at > IONOS/1&1 are currently affected

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

Laura, Thanks for your reply! Highly appreciated. Inline: >> - Anyone else seeing this behaviour from gmail recently? >> - Could the newly created, custom MAIL-FROM-domain cause a behaviour like >> this? The MAIL-FROM-Domain has not yet been used before, but the sending >> email address was the

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

> On 29 Apr 2024, at 16:02, Mendel Kucharzeck via mailop > wrote: [snip] > Questions: > > - Anyone else seeing this behaviour from gmail recently? > - Could the newly created, custom MAIL-FROM-domain cause a behaviour like > this? The MAIL-FROM-Domain has not yet been used before, but the s

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

Thank you so much Faisal and Matus for your helpful replies! Could you elaborate on the „p" and „sp" directive in the DMARC record? I am not entirely sure where I did the opposite of what was expected. „p“ is the behaviour for the top-level domain. „sp“ is for subdomains – and if „sp“ is not se

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

> configure DMARC for syniumsoftware.com to accept subdomain signatures. Uh... that's not configured in the DMARC policy. The sp= directive states what action to take from subdomains of a domain when a message fails DMARC. See https://datatracker.ietf.org/doc/html/rfc7489#section-6.3 and http

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

DKIM is fine at the organizational domain. I do think it's related to the introduction of new identities, and with time the filters will learn the reputation of the new identities. On 4/30/24 12:22 PM, Mendel Kucharzeck via mailop wrote: Am 30.04.2024 um 12:06 schrieb Matus UHLAR - fantomas vi

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

But this may be related to the drop in reputation of Amazon SES IP Space. Do they offer a dedicated outgoing IP Address that you can try? It also helps reduce any chance of forgeries.. Eg, smaller SPF footprint, that could have poisoned your reputation. Am 30.04.2024 um 12:06 schrieb Matus

[mailop] any postmaster or contact to knauf.com around? delivery issues

Hi, knauf.com is accepting much of our delivered mails, however afterwards probably drop them as recipients reported via phone, that none of the mails arrive in their mailboxes. Mail to postmaster@ and a known contact at knauf.com did not yield any response so far. Apr 23 10:12:54 mx3 postfix/sm

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

> Am 30.04.2024 um 12:06 schrieb Matus UHLAR - fantomas via mailop > : > >> But this may be related to the drop in reputation of Amazon SES IP Space. >> Do they offer a dedicated outgoing IP Address that you can try? It also >> helps reduce any chance of forgeries.. Eg, smaller SPF footprint,

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

On 2024-04-29 08:02, Mendel Kucharzeck via mailop wrote: - A newsletter campaign on January, 18th was successful with high read-rates. DMARC and BIMI were not present during this campaign, but DKIM and SPF. MAIL FROM domain was amazonses.com - Another newsletter campaign was send on March 15th,

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

Hi, > Am 29.04.2024 um 20:28 schrieb Michael Peddemors via mailop > : > > On 2024-04-29 08:02, Mendel Kucharzeck via mailop wrote: >> Hi, >> During my last email campaign, I’ve encountered issues with gmail – and >> after investigating this for a few days, I cannot make heads or tails of the >