Re: [mailop] Cyren

I don't see any changes in our use of Cyren yet, but the writing is on the wall and we are forced to move on. I don't see anything like all Swiss messages blocked or marked as spam. All of our contacts at Cyren are no longer there. signature.asc Description: PGP signature __

Re: [mailop] Cyren

p On Behalf Of Benoit Panizzon via mailop Sent: Monday, February 13, 2023 11:18 AM To: Al Iverson Cc: Carsten Schiefner via mailop Subject: Re: [mailop] Cyren > This is a good hypothesis but so far I have not seen any absolute > confirmation that they are "listing the world." I gu

Re: [mailop] Cyren

Hi Benoit We aren't hearing any specific reports of failure like this; however, for anyone concerned, we have an SSL-secured ctasd endpoint that implements the ctasd protocol but is backed by a different filter. Reach out to me for details. Regards, Ken On Mon, Feb 13, 2023 at 8:21 AM Benoit Pa

Re: [mailop] Cyren

> This is a good hypothesis but so far I have not seen any absolute > confirmation that they are "listing the world." I guess we will see... I fear this is the case. I have contacted the ISP in question whose ctasd instance was adding 6 SpamAssassin Points to every email sent by their customer. T

Re: [mailop] Cyren

This is a good hypothesis but so far I have not seen any absolute confirmation that they are "listing the world." I guess we will see... Cheers, Al Iverson On Mon, Feb 13, 2023 at 2:53 AM Benoit Panizzon via mailop wrote: > > Hi All > > I have started seeing a lot of emails sent via one Swiss IS

Re: [mailop] Cyren

Schiefner via mailop Subject: Re: [mailop] Cyren Hi All I have started seeing a lot of emails sent via one Swiss ISP flagged as spam by the SpamAssassin CTASD, which according to Google, is Cyren's anti spam service. Have they started flagging all emails as spam to tell their customer to stop

Re: [mailop] Cyren

Hi All I have started seeing a lot of emails sent via one Swiss ISP flagged as spam by the SpamAssassin CTASD, which according to Google, is Cyren's anti spam service. Have they started flagging all emails as spam to tell their customer to stop using their service? Mit freundlichen Grüssen -Ben

Re: [mailop] Cyren

Hi everyone, To help Cyren customers, MailChannels is offering free access to the MailChannels content filter API, which accurately filters billions of messages for tens of millions of users and millions of domains within our transactional email service. 43% of the domains

Re: [mailop] Cyren

All - for those amongst you who have no real clue what Matthew's email is about, please be referred to: Cyren Announces Global Reduction in Force; Liquidity Challenges https://ir.cyren.com/websites/cyren/English/5015/press-release.html?airportNewsID=631c3a77-555f-4a78-be5b-ec30c5cdaaac Best,

[mailop] Cyren

All, Spamhaus is offering our data query service for free for 90 days for users impacted by Cyren's sudden liquidation. No strings attached just an effort to get those that are impacted by the news this week protected as quickly as possible. Our hopes is that this gives users protection again

Re: [mailop] Cyren status regularly flapping back to Suspicious

Hello, Alessandro Vesely via mailop wrote on 07.07.21 at 13:27: So it's IPv4.  Talos[*] reports low email activity on it.  Do you send out DMARC reports and similar stuff?  I found that doing so increases my footprint and hence stabilizes reputation, albeit some point out that reports can be

Re: [mailop] Cyren status regularly flapping back to Suspicious

On Tue 06/Jul/2021 20:28:16 +0200 Florian Effenberger via mailop wrote: Alessandro Vesely via mailop wrote on 06.07.21 at 18:38: I tried https://www.cyren.com/security-center/cyren-ip-reputation-check-gate and it says "No Risk" for 188.34.176.133 and "Please enter a valid IP" for 2a01:4f8:c010

Re: [mailop] Cyren status regularly flapping back to Suspicious

Hello, thanks for the replies! John Levine via mailop wrote on 05.07.21 at 18:59: I believe the recipient's mail system is misconfigured. If Cyren tags an IP as yellow, they should soft fail with 450 so it can retry later. That could be indeed helpful. I was reaching out to their postmaster

Re: [mailop] Cyren status regularly flapping back to Suspicious

On Mon 05/Jul/2021 14:45:30 +0200 Florian Effenberger via mailop wrote: Their website lists the IP as yellow ("Suspicious"), with an explanation of "The IP has only recently started sending mails, and therefore still has an Unknown reputation". I tried https://www.cyren.com/security-center/

Re: [mailop] Cyren status regularly flapping back to Suspicious

It appears that Florian Effenberger via mailop said: >Hello, > >I have some issues with the Cyren blocklist - one recipient's server is >bouncing mails back with > >550-5.7.1 This email was rejected because it violates our security policy >550 5.7.1 CYREN IP reputation determined a medium risk as

Re: [mailop] Cyren status regularly flapping back to Suspicious

On 05/07/2021 14:45, Florian Effenberger via mailop wrote: Hello, I have some issues with the Cyren blocklist - one recipient's server is bouncing mails back with 550-5.7.1 This email was rejected because it violates our security policy 550 5.7.1 CYREN IP reputation determined a medium risk

[mailop] Cyren status regularly flapping back to Suspicious

Hello, I have some issues with the Cyren blocklist - one recipient's server is bouncing mails back with 550-5.7.1 This email was rejected because it violates our security policy 550 5.7.1 CYREN IP reputation determined a medium risk associated with the sender address X.X.X.X. (in reply to DATA