Returned Error "Too many failures to this host during this run; skipping ..

Hi,

> I have experienced some issues to send mails to a

> certain domain "domain" using my iplanet messaging

> server 5.1.

Firstly, please verify the version you are running by supplying the output of ./imsimta version

> Below the logs that appeared in the mta logs..

>

> can anyone help me to clarify what this log messages

> means ?

>

> thanks in advance.

>

> Samir..

>

> 23-Jan-2007 19:01:54.95 1009.1a.236 tcp_local

> Q 41037 <local_Address>

> rfc822;<remote_Address@domain>

> <remote_Address@domain>

> /data/ims/queue/tcp_local/004/ZV0JCB000Y5SGU8U.00

> <358F8A9F8FB1C34ABE6E8607A1885CECBCEC44@exdatlxxxx.EQ1

> SGS.local> mailman1.ppco.com dns;mailman1.ppco.com

> (TCP|x.x.x.x|55480|x.x.x.x|25) (mailhost.com ESMTP

> Sendmail Switch-3.1.8/Switch-3.1.7; Tue, 23 Jan 2007

> 17:54:20 -0600) smtp;250 2.1.5

> <remote_Address@domain> ... Recipient ok

>

>

> 23-Jan-2007 19:01:54.98 1009.1a.238 tcp_local

> Q 102912 <local_Address>

> rfc822;<other_remote_address@domain>

> <other_remote_address@domain>

> /data/ims/queue/tcp_local/011/ZX0JCC00B4H9TS2A.00

> <0A01764E2A160343B87B3990BB01B4CC01962114@exdatlxxxx.

> Q1SGS.local> Too many failures to this host during

> this run; skipping this host: Basic no

There can be any number of reasons why this is happening. Based on the log information though, a most likely guess is that the size of the email is the cause. The emails appear to be 40MB+ and 100MB+ respectively -- which sending to external hosts, chances are the connection is timing out.

Regards,

Shane.

shane_hjortha at 2007-7-8 22:24:53 >

> So u mean that after our MTA received the :

> smtp;250 2.1.5 > <remote_Address@domain> ...

> Recipient ok

>

> and while transfering the DATA ... the connection

> then was timed out , so the next log entry will be in

> " Q " state ?

That's correct. The number after the "Q" is how much data was delivered before the connection was dropped/timed-out. So 41037 is 41,037 blocks. A block is usually 1024 bytes, giving you ~40MB transferred successfully.

Regards,

Shane.

shane_hjortha at 2007-7-8 22:24:53 >

Hi,

> By the way, i discovered that my conf. BLOCK_SIZE is

> only 1 byte

Are you absolutely sure about this, and if so, why would you want to set it to this value.

BLOCK_SIZE is used throughout messaging server. It even says in the messaging reference guide that this is a bad thing to set the BLOCK_SIZE to:

"Caution: Reducing BLOCK_SIZE too much (to a value of 1) may have

negative impact on the MTA." (note this is from the 2006Q4 reference guide (beta) I didn't check if the existing 2005Q4 guide has this warning).

> so the sent size for that case will be

> only 40K not 40M, but i think that is the same

> problem, right ?

I think you want to consider adjusting your BLOCK_SIZE and everything else that relies on it back to a more reasonable value e.g. 1024.

Regards,

Shane.

shane_hjortha at 2007-7-8 22:24:53 >