Here is how IMail answers:
220 X1 NT-ESMTP Server sounddata.com (IMail 6.05 2148-1)
You need a PTR record in DNS that will resolve 204.182.58.11 to
sounddata.com.
Many mail servers will drop your connection if they cannot match your
IMail hostname with a PTR record for the IP address.
Please see:
http://support.ipswitch.com/kb/IM-19990108-JK03.htm
IMail - Discussion of DNS records
Dave
In reply to 13 Mar message from [EMAIL PROTECTED]:
>The real Domain Name of the original message is
>zerowaste.com.
>Thanks for any help on this, Dave.
>Bob
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of Dave
>MacMillan Sent: Tuesday, March 13, 2001 10:38 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [IMail Forum] unknown user error (possible
>related issue?)
>Dummy info may bring dummy responses, such as this one. The
>actual domain name would allow others to help see what is
>going on.
>Dave
>In reply to 13 Mar message from
>[EMAIL PROTECTED]:
>>Actually, I wrote [EMAIL PROTECTED], but it is a
>>dummy of the real email address.
>>Starting this morning, I'm getting this error message sending
>>to someone I've corresponded with for several years:
>>Your message
>> To: username
>> Subject: RE: title
>> Sent: Tue, 13 Mar 2001 11:26:26 -0600
>>did not reach the following recipient(s):
>>username on Wed, 20 Jun 2001 21:40:51 -0600
>> The maximum time for delivering the message expired
>> The MTS-ID of the original message is: c=us;a=
>>;p=aegon;l=DDCD-EXSMTP30103131726G6SHKRGY
>> MSEXCH:MSExchangeMTA:ATLANTA:AASMGBCFAX
>>Obviously, I replace the person's name with "username". This
>>comes back in less than 1 minute.
>>I've checked my DNS setup and it appears that my MX and A
>>records are correctly set -- though if someone wants to
>>review, they can.
>>Is the above error related to the other error I reported? Is
>>this error happening on my end or theirs?
>>Thanks.
>>Bob Ferguson
>>Sound Data, Inc.
>>-----Original Message-----
>>From: Robert Dodd [mailto:[EMAIL PROTECTED]]
>>Sent: Tuesday, March 13, 2001 6:03 AM
>>To: [EMAIL PROTECTED]
>>Subject: RE: [IMail Forum] unknown user error
>>Saw the message in the digest and it rang a bell...
>>Look very carefully (magnifying glass, even) at the rejected
>>address in the MSExchange tracking log, at the SMTP address
>>of the recipient (Exchange Administrator), and at the address
>>used to send the message. MS Exchange will reject anything
>>that is not exactly correct. Spaces are included in the
>>lookup, even trailing spaces at the end of an address. (I
>>don't like the looks of a space in 'valid [EMAIL PROTECTED]',
>>but you may have added that for clarity.)
>>>From: "Bob Ferguson" <[EMAIL PROTECTED]>
>>>Subject: [IMail Forum] unknown user error
>>>Date: Mon, 12 Mar 2001 15:44:01 -0800
>>>Reply-To: [EMAIL PROTECTED]
>>>Can someone look at this error message and tell why a valid user on
>this
>>>email server is being reported as unknown? The sender can send to me
>with
>>>no problem (same iMail server, different Domain Name). Others
>(meaning
>>>other users on other Domains) can send to this user. This user can
>send to
>>>the sender. I don't even see in our logs where our server is getting
>asked
>>>about this user by this sender. The sender is using MS Small
Business
>>>Server, but since other emails are going out and to us, that doesn't
>appear
>>>to be an issue.
>>>
>>>I'm stumped. Suggestions???
>>>
>>>Thanks.
>>>> -----Original Message-----
>>>> From: System Administrator
>>>> Sent: Thursday, March 08, 2001 11:04 AM
>>>> To: '[EMAIL PROTECTED]'
>>>> Subject: Undeliverable: FW: Tire Recycling March 13 meeting
>postponed
>>>>
>>>> Your message did not reach some or all of the intended recipients.
>>>>
>>>> Subject: FW: Tire Recycling March 13 meeting postponed
>>>> Sent: 3/8/01 11:04 AM
>>>>
>>>> The following recipient(s) could not be reached:
>>>>
>>>> '[EMAIL PROTECTED]' on 3/8/01 11:04 AM
>>>> The recipient name is not recognized
>>>> The MTS-ID of the original message is: c=US;a=
>>>> ;p=ENV;l=DASERVER-010308190342Z-1273
>>>> MSEXCH:IMS:ENV:DASERVER:DASERVER 3550 (000B099C) 550
>>>> <[EMAIL PROTECTED]>... User unknown
>>>>
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