TLS Problems

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Revision as of 16:40, 20 June 2014 by MCoyne (talk | contribs)

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We've found that Debian 7's version of OpenSSL has problems interoperating with some other SSL implementations. Here are some things you can try:

  1. Add this to the end of /etc/mail/
    --> dnl # Do not allow SSLv2 and weak ciphers
    --> O CipherList=HIGH:MEDIUM:!ADH:!MD5:!SSLv2
    --> O ClientSSLOptions=+SSL_OP_NO_TLSv1
    After you add the above lines, type:
    --> make -C /etc/mail && /etc/init.d/sendmail reload
  2. If that doesn't help, you have to disable TLS with the machine Put this lines in /etc/mail/access:
    --> NO
    and again:
    --> make -C /etc/mail
  3. If that still does not work, you may have to disable STARTTLS for now by removing
    --> include(`/etc/mail/tls/starttls.m4')dnl from and running:
    --> make -C /etc/mail && /etc/init.d/sendmail reload