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3 Commits
aa38ae7d76 ... 765b16fd59

Author SHA1 Message Date
Christoph
765b16fd59 Merge branch 'master' of git.oopen.de:install/mailsystem 2024-10-01 00:21:35 +02:00
Christoph
6a34a5b74c README.test_mailprotocolls: add test of RSA based TLS connection. 2024-10-01 00:21:16 +02:00
Christoph
ad1d844b54 install_postfix_advanced.sh: some minor changes in writing 'main.cf'. 2024-10-01 00:20:04 +02:00
2 changed files with 8 additions and 1 deletions
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7
DOC/README.test_mailprotocolls
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@ -14,3 +14,10 @@ openssl s_client -crlf -starttls pop3 -connect localhost:110
openssl s_client -crlf -connect localhost:993 openssl s_client -crlf -connect localhost:993
openssl s_client -crlf -starttls imap -connect localhost:143 openssl s_client -crlf -starttls imap -connect localhost:143
# Test RSA based TLS connection
#
echo "quit" | openssl s_client -connect a.mx.oopen.de:25 -starttls smtp -tls1_2 -cipher ECDHE-RSA-AES256-GCM-SHA384
echo "quit" | openssl s_client -connect a.mx.oopen.de:25 -starttls smtp -tls1_2
echo "quit" | openssl s_client -connect a.mx.oopen.de:25 -starttls smtp

2
install_postfix_advanced.sh
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@ -1998,7 +1998,7 @@ smtp_tls_mandatory_protocols = >=TLSv1.2
# Use EECDH with approximately 192 bits of security at computational cost that is # Use EECDH with approximately 192 bits of security at computational cost that is
# approximately twice as high as 128 bit strength ECC. # approximately twice as high as 128 bit strength ECC.
# #
smtpd_tls_eecdh_grade = auto #smtpd_tls_eecdh_grade = auto
# With SSLv3 and later, use the Postfix SMTP server's cipher preference order instead # With SSLv3 and later, use the Postfix SMTP server's cipher preference order instead