[Exim] security - vulnerable

hi,

as i notice in the FAQ and in this mailinglist, there is not much
discussion about security issues...
why not?
is exim absolutely secure;)

robert

PS: How can I prevent the server version from being displayed?

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di. robert rotman                                   inode.graz
phone -> ++43-(0)316 811451          ++43-(0)316 811451 <- fax
rotman@???                      http://www.graz.inode.at/
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this letter was written on recycled bytes used by deleted mail.