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Old 07-05-2006, 11:26 PM   #1
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Registered: Jul 2003
Posts: 22

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sendmail lost input channel

I've been seeing a lot of "lost input channel" at /var/log/maillog of sendmail-8.12v. Any ideas what's causing this?

Second question:

When i run the command "mailq" i see a lot of MAILER-DAEMON connection time out with, can i trace down from what computer is this coming from?

Hope you give me some help. thanks!
Old 07-05-2006, 11:52 PM   #2
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Registered: Dec 2005
Location: Brisbane, Australia
Distribution: Slackware64 14.0
Posts: 4,138

Rep: Reputation: 168Reputation: 168
I can't tell you what they're doing, but here's some info on where they're from:
$ dig

; <<>> DiG 9.3.2 <<>>
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47489
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 2, ADDITIONAL: 2

;             IN      A

;; ANSWER SECTION:      29158   IN      A      29158   IN      A      29158   IN      A      29158   IN      A      29158   IN      A      29158   IN      A

;; AUTHORITY SECTION:         29158   IN      NS         29158   IN      NS

;; ADDITIONAL SECTION:           20475   IN      A           20476   IN      A

;; Query time: 30 msec
;; WHEN: Thu Jul  6 13:46:24 2006
;; MSG SIZE  rcvd: 205
Whois results from
inetnum: -
netname:         SOVINTEL-Umer-NET
descr:           Moscow Russia
descr:           ID-570715, Mamba Ltd.
country:         RU
admin-c:         SV1283-RIPE
tech-c:          SV1283-RIPE
status:          ASSIGNED PA "status:" definitions
mnt-by:          SOVINTEL-MNT
source:          RIPE # Filtered

person:          Sergey Vasiliev
address:         103031 Moscow Russia
address:         Petrovka str., 15/1, 417
phone:           +7 916 1710111
fax-no:          +7 916 1710111
nic-hdl:         SV1283-RIPE
source:          RIPE # Filtered

% Information related to ''

descr:           SOVAM DELEGATED BLOCK-1
origin:          AS3216
mnt-by:          AS3216-MNT
source:          RIPE # Filtered
Do you have any friends in Russia?


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