Packages describing “mail” as local USE flag

Package“mail” Flag Description
mate-extra/caja-extensionsAdd an extension to support e-mail functionality.
net-analyzer/icinga2Allows for mailing of alerts
net-proxy/3proxyenable IMAP/POP3/SMTP proxies (imapp/pop3/smtpp)
www-servers/nginxEnable POP3/IMAP4/SMTP mail proxy server

All packages providing a “mail” USE flag (3)