AW: RSA and ECDSA - warning: No certs for key at index 1

[Maurizio Caloro]

Hello
Today create new my key file RSA, and ECDSA, and signed with certbot.

## TLS/SSL
        /etc/letsencrypt/live/nmail.caloro.ch/privkey.pem
        /etc/letsencrypt/live/nmail.caloro.ch/fullchain.pem

## RSA Key
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/fullchain.pem

## ECDSA Key
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/fullchain.pem

[main.cf]
smtpd_tls_chain_files =
        /etc/letsencrypt/live/nmail.caloro.ch/privkey.pem,
        /etc/letsencrypt/live/nmail.caloro.ch/fullchain.pem,
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem,
        /etc/letsencrypt/live/nmail.caloro.ch-rsa/fullchain.pem

# smtpd_tls_cert_file =
/etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem
# smtpd_tls_key_file =
/etc/letsencrypt/live/nmail.caloro.ch-rsa/fullchain.pem
# smtpd_tls_eccert_file =
/etc/letsencrypt/live/nmail.caloro.ch-ecdsa/privkey.pem
# smtpd_tls_eckey_file =
/etc/letsencrypt/live/nmail.caloro.ch-ecdsa/fullchain.pem

smtpd_tls_received_header = yes
smtpd_tls_CAfile = /etc/ssl/certs/ca-certificates.crt

--
[Mail.log]
May 31 13:00:24 nmail postfix/smtps/smtpd[27271]: warning: key at index 1 in
/etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem does not match next
certificate
May 31 13:00:24 nmail postfix/smtps/smtpd[27271]: warning: TLS library
problem: error:1426D121:SSL routines:ssl_set_cert_and_key:not replacing
certificate:../ssl/ssl_rsa.c:1081:
May 31 13:00:24 nmail postfix/smtps/smtpd[27271]: warning: error loading
private keys and certificates from:
/etc/letsencrypt/live/nmail.caloro.ch/privkey.pem,
/etc/letsencrypt/live/nmail.caloro.ch/fullchain.pem,
/etc/letsencrypt/live/nmail.caloro.ch-rsa/privkey.pem,
/etc/letsencrypt/live/nmail.caloro.ch-rsa/fullchain.pem: disabling TLS
support

-- thanks for any update