Followed instructions found here: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/200169-Configure-ESA-to-prefer-Perfect-Forward.html#anc8
As you posted in March. David -- https://dprall.net On 10/23/2025 8:23 AM, Fehlauer, Norbert wrote:
Hi David, thanks. Mail arrived without issues. I guess you have enabled outbound ecc certificate use on your ESA, right? Regards Norbert Norbert Fehlauer Dipl. Wi-Inform. (FH) Principal Expert SYSTEMA Gesellschaft für angewandte Datentechnik mbH Baberowweg 7 14482 Potsdam Germany +4933174770640 [email protected] <mailto:[email protected]> www.systema-online.de SYSTEMA Gesellschaft für angewandte Datentechnik mbH Geschäftsführer: Henry Bischof und Stefan Riek Registergericht: Amtsgericht Potsdam Registernummer: HRB 5996 Umsatzsteuer- Identifikationsnr.: DE 16 10 80 886 -----Ursprüngliche Nachricht----- Von: mailop <[email protected]> Im Auftrag von David Prall via mailop Gesendet: Donnerstag, 23. Oktober 2025 14:11 An: [email protected] Betreff: Re: [mailop] Changes at Cisco ESA for outbound TLS ciphers? Norbert, Just sent you a direct message. It was delivered to you from ironport-c300vb.dcptech.com 23 Oct 2025 08:05:39 (GMT -04:00) SMTP delivery connection (DCID 590422) opened from Cisco IronPort interface 2620:ee:8000:101:0:a:196a:c0df to IP address 2a00:0:2d41:2:178:15:145:70 on port 25. 23 Oct 2025 08:05:40 (GMT -04:00) Delivery connection (DCID 590422) successfully accepted TLS protocol TLSv1.2 cipher ECDHE-ECDSA-AES256-GCM-SHA384 None. 23 Oct 2025 08:05:45 (GMT -04:00) Message 210610 to [email protected] received remote SMTP response '2.6.0 <[email protected]> [InternalId=26474178412560, Hostname=edge02.systema-online.de] 7144 bytes in 4.764, 1,464 KB/sec Queued mail for delivery'. David
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