CentOS 7, postfix SMTPUTF8 / Email Address Internationalization (EAI)
SMTPUTF8 is one of extended/enhanced SMTP feature. The protocol format was defined in RFC 6531.Latest postfix-3.1, support for SMTPUTF8 feature (since version 2.12) and this is how to install/compile it on CentOS 7. Install libicu-devel, if it's not install yet. Download postfix-3.1 rpm source Rebuild the source Upgrade existing postfix…
