one issue is now KNOWN_BUG #79
the other we just skip since nobody is working on it or is planning to
start working on it anytime soon
-To be addressed in 7.28
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-
-315 - multiple receivers with SMTP and one fails
-
-326 - Improve testsuite for better results when running on MSYS/MinGW.
- Fix crahses with tests lib547, lib548, lib590 and curl.
- Fix socketflt for Win32. Fix hung with test 1326.
-
To be addressed in 7.29
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