Len and everybody else with the 5 "RCPT TO" to gateway problem,
NOTE: I believe it is truly a bug. If designed this way on purpose, it was
an oversight that should be corrected!! The only workaround that I have
come up with is to set your 'max recips per message' on each list to 5.
This will allow the messages to be dumped over to the relay immediately but
at a tremendous cost. If you have 8000 subscribers, that equates to 1600
connection attempts to your gateway. If instead you set the max recips per
message to 500 (assuming IMail was fixed), your connection attempts are
decreased to 16. Less traffic (the actual data file would be sent 16 times
instead of 1600)! less smtp delivers processes on the imail box, less
storage on imail, less storage on the gateway, more efficient! etc...
This appears to be the final word and IPswitch support says it's not a bug!
<snippped from support email>
Hi David,
I am the person this has been escalated to, and the final word came from the
developers, not me. In fact, this came from the Development Manager today.
I have forwarded your e-mails to the Development Manager, which is why he
gave me the answer. He understands what you are saying, however, he wants
you to realize this is by design, and is not a bug that needs fixing. Your
request has been noted, and it is reasonable. It will be looked at as a
feature request, but not as a bug.
I will keep this ticket open if you like, and if the functionality should
change I will certainly let you know. I will also forward this e-mail to
the Dev. Manager to let him know you don't consider this issue closed.
Thanks David.
Tanya M. Martin, MCSE
IMail Product Specialist
Ipswitch, Inc.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 11, 2000 4:41 PM
To: [EMAIL PROTECTED]
Subject: Re: Update to SMTP delivery problem on 6.04 - I believe
ansmtpbug[T2000092900EYZ436083]
Sender : [EMAIL PROTECTED]
Tracking Number : T2000092900EYZ436083
Pool : IMail Support
Sent to : <[EMAIL PROTECTED]>
Date : 10/11/00 4:39 PM
---
I understand and accept your reasoning for the 5 RCPT TO limitation when
delivering mail. HOWEVER, if I have configured imail to deliver all mail to
a gateway instead, imail should NOT use the same limitations. This should
be configurable in the SMTP properties along with the gateway setting.
After all, if I configure imail to use a gateway, the gateway is most
likely owned/operated my me so the fear of spam blocking techniques should
not be an issue.
5 RCPT TO limit per message to a single domain = Fine
5 RCPT TO limit when 'relay all mail thru gateway' = Unacceptable
Please keep this ticket open. This issue has not been resolved. If this is
the final word on the 5 RCPT problem, please let me know who to contact to
escalate this issue.
Thank you,
-----Original Message-----
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Wednesday, October 11, 2000 1:20 PM
Subject: RE: Update to SMTP delivery problem on 6.04 - I believe
ansmtpbug[T2000092900EY]
>Hello,
>
>The reason I mentioned Outlook is because we have quite a few different log
>files from other customers all pointing to the same type of problem. What
>is happening in Outlook (all versions) is that it drops the connection
after
>a bad address is received (in RCPT TO). It was thought this may be in
>relation to your problem. As it turns out, sending 5 RCPT TOs at a time is
>by design because a gateway means there is one destination for any number
of
>messages. It is the intent by sending 5 RCPT TOs at a time NOT to flood
the
>destination. You can relate this type of prevention to the way AOL and
>Mindspring limit the number of incoming messages per sending domain. If
>these larger ISPs detect more than 3-5 messages from one domain, it may
drop
>the connection (as spam prevention). We have seen this type of activity in
>log files also. It is this type of precaution IMail takes in determining
>one destination for a number of messages, thus only sending 5 RCPT TOs at a
>time.
>
>Thank you for your patience, David, while these conclusions were determined
>in Testing and Development.
>
>Tanya M. Martin, MCSE
>IMail Product Specialist
>Ipswitch, Inc.
>
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, October 11, 2000 12:06 PM
>To: [EMAIL PROTECTED]
>Subject: Re: Update to SMTP delivery problem on 6.04 - I believe
>ansmtpbug[T2000092900EYZ435576]
>
>
>Sender : [EMAIL PROTECTED]
>Tracking Number : T2000092900EYZ435576
>Pool : IMail Support
>Sent to : <[EMAIL PROTECTED]>
>Date : 10/11/00 12:03 PM
>---
>
>Outlook? This has nothing to do with the problem. There is also no
>problem with dropping connections. Mail is delivered successfully - but
>only 5 message at a time. The logs support this fact.
>
>This issue is strictly IMAIL's inability to deliver more than 5 RCPT TOs to
>the gateway at one time...
>
>NOTE: What the gateway is really doesn't matter. Imail behaves the same
>way with SENDMAIL, POSTFIX, and other IMAIL servers.
>
>
>-----Original Message-----
>From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>Date: Wednesday, October 11, 2000 8:28 AM
>Subject: RE: Update to SMTP delivery problem on 6.04 - I believe
>ansmtpbug[T2000092900EY]
>
>
>>Hello David,
>>
>>Yes, we can reproduce the problem, using a gateway and without using a
>>gateway. What is being determined now is "who" is dropping the
connection;
>>IMail or Outlook. Once Development has determined whether or not IMail is
>>dropping the connection, they will be able to tackle the problem at that
>>point. Right now we have log files from different scenarios in which
we're
>>trying to find a common ground. When I hear something new I will let you
>>know. Thank you...
>>
>>Tanya M. Martin, MCSE
>>IMail Product Specialist
>>Ipswitch, Inc.
>>
>>-----Original Message-----
>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>>Sent: Tuesday, October 10, 2000 7:05 PM
>>To: [EMAIL PROTECTED]
>>Subject: Re: Update to SMTP delivery problem on 6.04 - I believe
>>ansmtpbug[T2000092900EYZ434911]
>>
>>
>>Sender : [EMAIL PROTECTED]
>>Tracking Number : T2000092900EYZ434911
>>Pool : IMail Support
>>Sent to : <[EMAIL PROTECTED]>
>>Date : 10/10/00 7:02 PM
>>---
>>
>>Any news or at least a confirmation that you can duplicate the problem?
>>
>>Thanks,
>>
>>-----Original Message-----
>>From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>Date: Thursday, October 05, 2000 8:11 AM
>>Subject: RE: Update to SMTP delivery problem on 6.04 - I believe
>>ansmtpbug[T2000092900EY]
>>
>>
>>>Hello David,
>>>
>>>I apologize for not getting back to you sooner. Based on your last
>e-mail,
>>>which I forwarded to testing, this issue is being looked into. I have
not
>>>heard any word back yet, but I know for a fact they are looking into it
>>>further. As soon as I have any information I will get back to you. I
>will
>>>keep you updated periodically just to let you know you are not forgotten.
>>>
>>>I realize this is frustrating for you, but rest assured this is not an
>>issue
>>>that will be swept under the rug. I appreciate your patience.
>>>
>>>Tanya M. Martin, MCSE
>>>IMail Product Specialist
>>>Ipswitch, Inc.
>>>
>>>-----Original Message-----
>>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>>>Sent: Wednesday, October 04, 2000 4:12 PM
>>>To: [EMAIL PROTECTED]
>>>Subject: Re: Update to SMTP delivery problem on 6.04 - I believe
>>>ansmtpbug[T2000092900EYZ430955]
>>>
>>>
>>>Sender : [EMAIL PROTECTED]
>>>Tracking Number : T2000092900EYZ430955
>>>Pool : IMail Support
>>>Sent to : <[EMAIL PROTECTED]>
>>>Date : 10/4/00 4:08 PM
>>>---
>>>
>>>Any update on this item?
>>>
>>>Thanks,
>>>
>>>-----Original Message-----
>>>From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>>To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>>Date: Tuesday, October 03, 2000 1:23 PM
>>>Subject: RE: Update to SMTP delivery problem on 6.04 - I believe
>>>ansmtpbug[T2000092900EY]
>>>
>>>
>>>>Hello David,
>>>>
>>>>I understand what you are experiencing now. Just to give you an
>>update...I
>>>>forwarded your message to our Testing department. I will e-mail you
>again
>>>>tomorrow and let you know what direction this is going to go in. Thank
>>you
>>>>for your patience David. Talk to you tomorrow.
>>>>
>>>>Tanya M. Martin, MCSE
>>>>IMail Product Specialist
>>>>Ipswitch, Inc.
>>>>
>>>>-----Original Message-----
>>>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>>>>Sent: Tuesday, October 03, 2000 12:50 PM
>>>>To: [EMAIL PROTECTED]
>>>>Subject: Re: Update to SMTP delivery problem on 6.04 - I believe
>>>>ansmtpbug[T2000092900EYZ429726]
>>>>
>>>>
>>>>Sender : [EMAIL PROTECTED]
>>>>Tracking Number : T2000092900EYZ429726
>>>>Pool : IMail Support
>>>>Sent to : <[EMAIL PROTECTED]>
>>>>Date : 10/3/00 12:48 PM
>>>>---
>>>>
>>>>Thanks for getting back to me. Please see my answers to your questions
>>>>inline...
>>>>
>>>>-----Original Message-----
>>>>From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>>>To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>>>Date: Tuesday, October 03, 2000 9:38 AM
>>>>Subject: RE: Update to SMTP delivery problem on 6.04 - I believe
>ansmtpbug
>>>>[T2000092900EY]
>>>>
>>>>
>>>>>Hello David,
>>>>>
>>>>>IMail is set to grab 5 RCPT TO at a time, per domain. Larger ISPs like
>>>AOL
>>>>>and Bellsouth.net will only accept 5 at a time. A problem may exist
if
>>>>you
>>>>>see IMail grabbing two RCPT TOs from domainA, three from domainB, and
>one
>>>>>from domainC, and counting that as 5 RCPT TOs.
>>>>
>>>>
>>>>When NOT using a gateway, yes, imail sends up to 5 RCPT per domain.
>>>>
>>>>When *using* a gateway, imail simply grabs the top 5 address in the file
>>>>(regardless of destination domain), sends them to the gateway and queues
>>>the
>>>>rest of the addresses in the lst fiel for the next round (30-minutes
>>>later.)
>>>>
>>>>>
>>>>>So, to clarify, do you see IMail taking 5 RCPT TOs from the same domain
>>>>>being grabbed, or 5 RCPT TOs total from multiple domains?
>>>>
>>>>5 RCPT TOs total from multiple domains. This is where I believe the
>>>problem
>>>>is. THe 5 RCPT limit per domain is probably ok for normal deliveries
but
>>>>definitely NOT when imail is configured to send ALL mail thru a gateway.
>>I
>>>>believe these dhould be separate setting and user configurable (my
humble
>>>>opinion of course).
>>>>
>>>>>
>>>>>I'll be happy to get to the bottom of this issue with you. Keep me
>>>>>informed. Thanks David...
>>>>
>>>>Please let me know what you find or when a 'fix' can be expected. I'd
>>even
>>>>be willing to beta test the fix for you...
>>>>
>>>>>
>>>>>
>>>>>Tanya M. Martin, MCSE
>>>>>IMail Product Specialist
>>>>>Ipswitch, Inc.
>>>>>
>>>>>-----Original Message-----
>>>>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>>>>>Sent: Friday, September 29, 2000 6:02 PM
>>>>>To: [EMAIL PROTECTED]
>>>>>Subject: Update to SMTP delivery problem on 6.04 - I believe an smtpbug
>>>>>[T2000092900EYZ428637]
>>>>>
>>>>>
>>>>>Sender : [EMAIL PROTECTED]
>>>>>Tracking Number : T2000092900EYZ428637
>>>>>Pool : IMail Support
>>>>>Sent to : "IMail Forum" <[EMAIL PROTECTED]>
>>>>>Date : 9/29/00 5:59 PM
>>>>>---
>>>>>
>>>>>
>>>>>---
>>>>>
>>>>>I prematurely mailed the list with incorrect results earlier. Here are
>>>the
>>>>>results:
>>>>>
>>>>>Tested mailing list and observed traffic and spool files: Imail only
>>>>>delivers 5 RCPT at a time, no matter what
>>>>>
>>>>>Tested email message with 9 recips to another server of site. Indeed,
>>>>imail
>>>>>sent only 5 of the RCPT, followed by the other 4 after the queue time
>> 20
>>>>>minutes)
>>>>>
>>>>>I added the registry entry MaxRCPTPerMessage and repeated tests with
>>>>>settings of 0, 20, and 100. No change in behavior. The smtp service
>was
>>>>>stopped and started before each test.
>>>>>
>>>>>BTW - This is a fresh install of imail 6.04 w/patches
>>>>>
>>>>>A review of the imail log (all the gdeliver for 'multiple') entries,
>show
>>>a
>>>>>max delivery of (5) messages - never more. **This is the problem**.
>I'm
>>>>>curious how many yours show???
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
----- Original Message -----
From: "Len Conrad" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, October 12, 2000 12:31 AM
Subject: [IMail Forum] Imail-2-gateway: 5 msg throttling??
> Daniel, Grant,
>
> Did you ever reproduce the "5 messages at a time throttling" when
> Imail is told to send through a gateway? Can this bee fixed or patched?
>
> Len
>
>
> http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
> http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
> An Archive of this list is available at:
> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
>
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