Resolve "Amavis::Conf module version reported twice during startup"

Closes #100

See merge request !100

Prepare 2.13.0 release

See merge request !98

Fix readme typo

See merge request !99

Update installation readme

See merge request !97

Add support for new Sophos Protection for Linux on @av_scanners_backup

See merge request !95

Add support for new decoder Zstandard

See merge request !94

Resolve "$daemon_group problems using Amavis 2.12"

Closes #88

See merge request !93

Resolve "start_SSL fails to set SSL_verifycn_name"

Closes #72

See merge request !70

unrar patches

See merge request !3

Switch from Net::LibIDN to Net::LibIDN2

Closes #83

See merge request !92

Robert Scheck authored Jan 07, 2022 and dlucredativ committed Mar 04, 2022

Thanks to Damian Lukowski for the fallback option to Net::LibIDN and the tests.

Add support for the official 7-Zip command line version

Closes #76

See merge request !90

Resolve "Amavis::Util: can't obtain a tainted string at /usr/sbin/amavisd line 2935."

Closes #85

See merge request !91

Use the order discussed with / suggested by @toeberi

since 21.01 alpha    2021-03-09

Resolve "Folding not reversible by unfolding"

Closes #82

See merge request !88

New f-secure antivirus on av scanners

See merge request !87

Only the old format path of do_unrar() checks against $MAXFILES;
this adds that test to the new (v5) version as well.

Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com>

For RAR archives created with the “hp” switch, file listings are
impossible and unrar expects to be given a password. Determine
that we’re dealing with an encrypted file and set the flags
accordingly.

This handles archive versions 4 and 5, as well as ordinary and
self-extracting archives. The respective info strings are:

        Details: RAR 4, encrypted headers
        Details: RAR 4, SFX, encrypted headers
        Details: RAR 5, encrypted headers
        Details: RAR 5, SFX, encrypted headers

Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com>

unrar (version 5 and later) does not emit a space after the
leading character for files created on Linux (host type
HSYS_UNIX):

     *-rw-r--r--        11        32 290%  2016-09-12 12:47  D0A80260  some_file

Allow for a zero length match to make the regex work.

Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com>

Update master release notes w.r.t. v2.12.2

See merge request !84