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USE flags for mail-client/mutt A small but very powerful text-based mail client

autocrypt Enable support
berkdb Enable sys-libs/db database backend for header caching
debug Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see
doc Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
gdbm Enable sys-libs/gdbm database backend for header caching
gnutls Prefer net-libs/gnutls as SSL/TLS provider (ineffective with USE=-ssl)
gpgme Build gpgme backend to support S/MIME, PGP/MIME and traditional/inline PGP
gsasl Use GNU SASL via virtual/gsasl instead of Cyrus SASL (requires USE=sasl)
hcache Enable header cache, one database backend needs to be enabled
idn Enable support for Internationalized Domain Names
imap Add support for IMAP (Internet Mail Application Protocol)
kerberos Add kerberos support
lmdb Enable dev-db/lmdb database backend for header caching
mbox Add support for mbox (/var/spool/mail) style mail spools
nls Add Native Language Support (using gettext - GNU locale utilities)
pgp-classic Build classic_pgp backend to support PGP/MIME and traditional/inline PGP
pop Enable support for POP3 mailboxes
prefix Defines if a Gentoo Prefix offset installation is used
qdbm Add support for the qdbm (Quick Database Manager) library
sasl Add support for the Simple Authentication and Security Layer
selinux !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
slang Add support for the slang text display library (it's like ncurses, but different)
smime-classic Build classic_smime backend to support S/MIME
smtp Enable support for direct SMTP delivery
ssl Add support for SSL/TLS connections (Secure Socket Layer / Transport Layer Security)
tokyocabinet Enable dev-db/tokyocabinet database backend for header caching
vanilla Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically