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Date: Tue, 14 Dec 1999 00:29:58 +0900
From: Shingo WATANABE / =?ISO-2022-JP?B?GyRCRU9KVRsoQiA=?=
	=?ISO-2022-JP?B?GyRCPy04YxsoQg==?= <nabe@mobile.icc.titech.ac.jp>
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Subject: [FreeBSD-net-jp 2127] Helo command rejected: Host not found
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$B$o$?$J$Y!wEl9)Bg$G$9!#(B

$B$9$3$7$P$+$j:$$C$?$3$H$,$"$k$N$GCN7C$rB_$7$F2<$5$$!#(B

$B%$%s%?!<%M%C%H$NB&$+$i(B DNS $B$N(B A $B%l%3!<%I$,0z$1$J$$$h$&$J%[%9%HL>$K@_Dj$7(B
$B$F$$$k(B FreeBSD 3.3-RELEASE $B$N%3%s%T%e!<%?$,$"$j$^$9!#(B
($B6qBNE*$K$O!"(BPPP $B@\B3$7$F$$$k%3%s%T%e!<%?$G$9!#(B)

$B$3$N%[%9%H$O%m!<%+%k$K(B MTA $B$H$7$F(B sendmail $B$r5/F0$7$F$*$j!"$3$N%[%9%H$+(B
$B$i%a%$%k$rAw$k$H$-$K$O!"B>$N%[%9%H$K%j%l!<$r$;$:$K<+J,$GG[Aw$7$F$$$^$9!#(B


$B$3$N$H$-$K!"G[Aw@h$N0lIt$N%[%9%H$G$O(B  HELO $B$GL>>h$C$?%/%i%$%"%s%HL>$r(B
DNS $B$+$i0z$/$h$&$G!"0z$1$J$$>l9g$K%(%i!<$K$J$C$F<u$1<h$C$FLc$($J$$$h$&$G(B
$B$9!#(B($BNc$($P!"(BFreeBSD.org $B$H$+!#(B)

/var/log/maillog $B$h$j(B
Dec 14 00:02:13 xxxxxx sendmail[61202]: AAA61200: to=<xxx@xxxxxxx.xxx>, delay=00:00:08, xdelay=00:00:08, mailer=smtp, relay=xxx.xxxxxxx.xxx. [xxx.xxx.xx.xx], stat=Deferred: 450 <xxxx.xxxxxx.xxxxxx.xxxx.xx.jp>: Helo command rejected: Host not found


$BB?J,!"2r7h$9$k$K$O(B

  1. DNS $B$KEPO?$7$F$$$k%[%9%HL>$K$9$k!#(B($B%@%$%"%k%"%C%W$@$HFq$7$$(B)
  2. HELO $B$G!"<B:]$K;H$C$F$$$k(B IP $B$N%[%9%HL>$rL>>h$k!#(B
  3. $B<j6a$J(B MTA $B$K%j%l!<$rMj$`!#(B

$BEy$@$H;W$$$^$9!#(B

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$B$N%I%-%e%a%s%H$rFI$s$G$b3:Ev$9$k$h$&$J9`L\$r8+$D$1$k$3$H$,=PMh$^$;$s!#(B

3. $B$G$bNI$$$N$G$9$,!"%@%$%"%k%"%C%W$N>l9g$K$OJ#?t$N@\B3@h$r@ZBX$($k;v$,(B
$B$"$j$^$9!#$=$N$H$-$K@\B3@h$K1~$8$F%j%l!<@h$r@ZBX$($kNI$$J}K!$,;W$$IU$-$^(B
$B$;$s!#(B


$B$3$&8@$C$?>l9g$K$O!"$I$&$9$k$N$,@5$7$$$s$G$7$g$&$+!)(B
