[postfix-jp: 3388] Re: Postfix + amavisd-new + Clam AntiVirusで突然送受信ができなくなった

[田中 <tanaka@xxxxxxxxxxx>]

> とりあえず \ と数字の羅列の部分ですが、
> 「そのようなファイルやディレクトリはありません」
> と、言ってます。/var/amavis/db が無いのか、bad db env と言ってる
> ので、amavis の設定がおかしいのかチェックしてみてはいかがでしょう。

ここ数年amavisd.confの設定は変えてなくて問題なかったのですが、3/21に初めてこの症状が出ました。
その時、インターネットを調べて、

$QUARANTINEDIR = "/var/virusmails";

をコメントアウト（ウィルスメールを隔離しないで直ぐ削除）で直るかもというような情報がありコメントアウトしたのですが、3/29に同じ症状が出てしまいました。

休日に大量の迷惑メールが集中して送られてくるためamavisがクラッシュしてしまうように見えるのですが、はっきりとはわかりません。

以下amavisd.confの主な設定です。

田中

------------------------------------------------------------------------------------------------------
【amavisd.conf】

use strict;

$max_servers = 2;            # number of pre-forked children (2..15 is common)
$daemon_user  = "amavis";     # (no default;  customary: vscan or amavis)
$daemon_group = "amavis";     # (no default;  customary: vscan or amavis)
$mydomain = 'XXX.co.jp';   # a convenient default for other settings
$MYHOME = "/var/amavis";
$TEMPBASE = "$MYHOME/tmp";   # working directory, needs to be created manually
$ENV{TMPDIR} = $TEMPBASE;    # environment variable TMPDIR

# $QUARANTINEDIR = "/var/virusmails";

$db_home   = "$MYHOME/db";

@local_domains_maps = ( [".$mydomain"] );
$log_level = 0;              # verbosity 0..5
$log_recip_templ = undef;    # disable by-recipient level-0 log entries
$DO_SYSLOG = 1;              # log via syslogd (preferred)
$SYSLOG_LEVEL = 'mail.debug';
$LOGFILE = "/var/log/amavis.log";

$enable_db = 1;              # enable use of BerkeleyDB/libdb (SNMP and nanny)
$enable_global_cache = 1;    # enable use of libdb-based cache if $enable_db=1

$inet_socket_port = 10024;   # listen on this local TCP port(s) (see $protocol)

$sa_tag_level_deflt  = 2.0;  # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 6.31; # add 'spam detected' headers at that level
$sa_kill_level_deflt = 6.31; # triggers spam evasive actions
$sa_dsn_cutoff_level = 9;    # spam level beyond which a DSN is not sent
$sa_quarantine_cutoff_level = 20;  # spam level beyond which quarantine is off

$sa_mail_body_size_limit = 200*1024; # don't waste time on SA if mail is larger
$sa_local_tests_only = 0;    # only tests which do not require internet access?
$sa_auto_whitelist = 1;      # turn on AWL in SA 2.63 or older (irrelevant
                             # for SA 3.0, cf option is 'use_auto_whitelist')

$virus_admin               = "virusalert\@$mydomain";  # notifications recip.

$mailfrom_notify_admin     = "virusalert\@$mydomain";  # notifications sender
$mailfrom_notify_recip     = "virusalert\@$mydomain";  # notifications sender
$mailfrom_notify_spamadmin = "spam.police\@$mydomain"; # notifications sender
$mailfrom_to_quarantine = ''; # null return path; uses original sender if undef

@addr_extension_virus_maps      = ('virus');
@addr_extension_spam_maps       = ('spam');
@addr_extension_banned_maps     = ('banned');
@addr_extension_bad_header_maps = ('badh');

$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin';

$MAXLEVELS = 14;
$MAXFILES = 1500;
$MIN_EXPANSION_QUOTA =      100*1024;  # bytes  (default undef, not enforced)
$MAX_EXPANSION_QUOTA = 300*1024*1024;  # bytes  (default undef, not enforced)

$defang_virus  = 1;  # MIME-wrap passed infected mail
$defang_banned = 1;  # MIME-wrap passed mail containing banned name

$final_spam_destiny       = D_PASS;

・・・

@av_scanners = (
 ['ClamAV-clamd',
   \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd.sock"],
   qr/\bOK$/, qr/\bFOUND$/,
   qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],

・・・

);

1;  # insure a defined return

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