===> The following configuration options are available for exim-4.97:
     ALT_CONFIG_PREFIX=on: Restrict the set of configuration files
     CONTENT_SCAN=on: Enable exiscan email content scanner
     DAEMON=on: Install scripts to run as a daemon
     DANE=on: Enable experimental DANE support
     DEBUG=off: Build with debugging support
     DISABLE_D_OPT=on: Disable macros overrides using option -D
     DKIM=on: Enable support for DKIM
     DNSSEC=on: Enable DNSSEC validation
     DOCS=on: Build and/or install documentation
     EMBEDDED_PERL=on: Enable embedded Perl interpreter
     EVENT=on: Messages events support (TPDA namely)
     EXIMON=on: Build eximon monitor (requires X libraries)
     ICONV=on: Enable header charset conversion
     INTERNATIONAL=on: Enable support for the transmission of UTF-8 envelope addresses
     IPV6=on: IPv6 protocol support
     LISTMATCH_RHS=off: Enable pre-4.77 behaviour for match_*
     LMTP=on: RFC2033 SMTP over command pipe transport
     OCSP=off: Enable OCSP stapling
     PRDR=on: Enable Per-Recipient-Data-Response support
     PROXY=off: Enable Experimental Proxy Protocol
     READLINE=off: Enable readline(3) library
     SOCKS=off: Enable smtp transport via socks5 proxies
     SPF=on: Enable Sender Policy Framework checking
     SUID=on: Install the exim binary suid root
     TCP_WRAPPERS=off: Enable /etc/hosts.allow access control
     WISHLIST=off: Include the unsupported patches
====> SMTP Authorization
     AUTH_CRAM_MD5=on: Enable CRAM-MD5 authentication mechanisms
     AUTH_DOVECOT=on: Enable Dovecot authentication mechanisms
     AUTH_PLAINTEXT=on: Enable plaintext authentication
     AUTH_RADIUS=off: Enable radius (RFC 2865) authentication
     AUTH_SASL=off: Enable use of Cyrus SASL auth library
     AUTH_SPA=on: Enable Secure Password Authentication
     AUTH_TLS=on: Enable TLS client certificate authentication
     SASLAUTHD=off: Enable use of Cyrus SASL auth daemon
     PAM=on: Enable PAM authentication mechanisms
     PASSWD=on: Enable /etc/passwd lookups
====> Lookup support
     CDB=off: Enable CDB-style lookups
     BDB=off: Enable Berkeley DB lookups
     DNSDB=on: Enable DNS-style lookups
     DSEARCH=on: Enable directory-list lookups
     LSEARCH=on: Enable wildcarded-file lookups
     MYSQL=off: Enable mysql lookups
     NIS=off: Enable NIS-style lookups
     OPENLDAP=off: Enable LDAP lookups
     PGSQL=on: Enable postgresql lookups
     REDIS=off: Enable redis lookups
     SQLITE=off: Enable SQLite lookups
====> Supported storage formats
     MAILDIR=on: Enable Maildir mailbox format
     MAILSTORE=off: Enable Mailstore mailbox format
     MBX=on: Enable MBX mailbox format
====> Experimental options
     CERTNAMES=off: Check certiticates ownership
     DCC=on: Enable DCC at ACL support via dccifd
     DMARC=on: Enable DMARC support
     DSN=on: Enable Delivery Status Notifications
     ARC=on: Enable experimental ARC support
     LMDB=off: Enable LMDB lookups
     QUEUEFILE=off: Enable queuefile transport
====> TLS support: you can only select none or one of them
     TLS=on: TLS support
     GNUTLS=off: Use GnuTLS instead of OpenSSL for TLS
====> Local scan patch: you can only select none or one of them
     SA_EXIM=off: Build with Spamassassin local scan
====> Sender Rewriting Scheme: you can only select none or one of them
     SRS=on: Enable Sender Rewriting Scheme
===> Use 'make config' to modify these settings