Re: [Fink-users] Postfix?

[Christian E. <bla...@gm...>]

* Stefan Bruda on Wednesday, November 08, 2017 at 08:00:24 -0500 
> The latest security update for Mac OS 10.12 seems to have broken TLS
> in Posifix,

The only way to get around this I found so far is to upgrade to 
Mac OS 10.13.1 - see: 
https://apple.stackexchange.com/questions/304660/postfix-issue-on-mac-os-x-10-12-6

I don't like being rushed into an OS upgrade, but for me it was 
the lesser of 2 evils.

> so I thought I could try the version provided by Fink
> instead.  However, that does not work because system-openssl-dev no
> longer exists, yet it is a dependency for the postfix package:
> 
> < godel:~ > fink install postfix
> Information about 11136 packages read in 2 seconds.
> The package 'postfix' will be built and installed.
> Reading build dependency for postfix-2.9.0-2...
> WARNING: While resolving dependency "system-openssl-dev" for package "postfix-2.9.0-2", package "system-openssl-dev" was not found.
> Can't resolve dependency "system-openssl-dev" for package "postfix-2.9.0-2" (no matching
> packages/versions found)
> Exiting with failure.
> 
> Is the postfix package dead?  Information is much appreciated.
> 
> Best regards,
> Stefan
> 
> P.S. This has nothing to do with Fink, but just in case somebody has
> an idea on what goes wrong with the system Postfix, here it is.  The
> previously working configuration now produces the following:
> 
> smtp: warning: Digest algorithm "md5" not found
> smtp: warning: disabling TLS support
> 
> Changing the digest algorithm like this:
> 
> smtp_tls_fingerprint_digest = sha256
> 
> produces the following:
> 
> smtp: warning: cannot allocate client SSL_CTX: disabling TLS support
> smtp: warning: TLS library problem: error:140A90F2:lib(20):func(169):reason(242):/Library/Caches/com.apple.xbs/Sources/libressl/libressl-11.50.3/libressl/ssl/ssl_lib.c:1868:
> 
> Any advice you might have is much appreciated!

Looks like the 10.12 security update does some weird ssl 
breakage; at least in conjunction with postfix.

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