* Michael Peddemors via mailop <[email protected]>: > On 2025-12-14 23:43, Ralf Hildebrandt via mailop wrote: > > * ml+mailop--- via mailop <[email protected]>: > > > > > > Since we changed our x509 certificates for the MX hosts of charite.de, > > > > mimecast.com customers cannot send anymore. > > > > > > Just curious: does your server log a TLS related error? > > > If so, can you share it? > > > > Dec 9 13:04:01 mail-cbf-int extern/smtpd[4088632]: NOQUEUE: lost > > connection after STARTTLS from > > de-smtp-delivery-58.mimecast.com[194.104.109.58] > > > > Yes, that's the typical error you see, but hard to tell why.. eg.. was the > sender still trying to use v1.0?
Probably not. Once I turn off my ECC certificate on the smtpd, mail goes through. So it's entirely certificate type related (RSA works, ECC doesn't) -- Ralf Hildebrandt Charité - Universitätsmedizin Berlin Geschäftsbereich IT | Abteilung Netz | Netzwerk-Administration Invalidenstraße 120/121 | D-10115 Berlin Tel. +49 30 450 570 155 [email protected] https://www.charite.de _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
