sendEmail发邮件的时候，出现的报错，然后查阅了很多资料
在http://caspian.dotconf.net/menu/Software/SendEmail/
上找到了 下面这段话
Q: I get the error "invalid SSL_version specified at /System/Library/Perl/Extras/5.16/IO/Socket/SSL.pm line 332.a on my Apple. What do I do?
A: Here's what I got from one user. It's a workaround until I put a real fix in:
> Fixed it by using Perl v5.12 that's still on OSX Mavericks. > (just changed sendEmail line 1 from #!/usr/bin/perl -w to #!/usr/bin/perl5.12 -w)
centos7.2默认是 perl的版本是5.16，centos6.5的是5.10，后来把7的版本换成5.10，就可以正常发邮件了。
#### perl安装wget http://www.cpan.org/src/5.0/perl-5.10.0.tar.gztar -zxf perl-5.10.0.tar.gzcd perl-5.22.0./configure.gnu -des -Dprefix=/usr/local/perlecho $?makemake testmake installmv /usr/bin/perl /usr/bin/perl.bak
ln -s /usr/local/perl/bin/perl /usr/bin/perl
perl -v
2、只替换sendEmail使用的perl版本
cp -a /usr/local/perl/bin/perl /usr/bin/perl.5.10
sed -i 's#/usr/bin/perl -w#/usr/bin/perl.5.10 -w#g' /usr/local/bin/sendEmail
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