|
Home > Archive > IIS and SMTP > March 2004 > Delivery Failure Message
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
Delivery Failure Message
|
|
|
| Can anyone clarify this message for me?
A couple of people here have received the following delivery failure
message(s):
The following recipient(s) could not be reached:
User1@company.com on 3/12/2004 1:17 PM
The e-mail address could not be found. Perhaps the recipient moved to a
different e-mail organization, or there was a mistake in the address. Check
the address and try again.
<ma2.meachamapel.com #5.1.8 smtp;501 5.1.8 Sender domain must have a DNS MX
or A/CNAME record.>
Could not deliver message to the following recipient(s):
Failed Recipient: user2@company.com
Reason: Remote host said: 501 5.1.8 Sender domain must have a DNS MX or
A/CNAME record.
As far as I know, this is only happening when sending to this company,
though multiple users at that company. This would make me suspect that this
issue is on their end, not ours. I also found one article on google that
seemed to suggest that it would be their end. However, the message itself
appears that it's talking about our domain being the problem, and I'd like
to rule that out completely before I go telling the other company that it's
their problem.
Can anyone clarify for me what end this type of issue is on and what should
be done for it? To my knowledge, we have not changed anything locally with
our DNS. Does our ISP need to change something for us?
I appreciate any advice or input...I'm still feeling a little fuzzy on DNS.
Thank you!
| |
|
| p.s. I found this information at RFC 1893, but I don't understand how this
could be the case with our email. We send and receive mail all the time
with little to no trouble and it's only bouncing from that company.
X.1.8 Bad sender's system address
The sender's system specified in the address does not exist
or is incapable of accepting return mail. For domain names,
this means the address portion to the right of the "@" is
invalid for mail.
"Jenna" <stilesj AT meachamapel DOT com> wrote in message
news:O3mdQ9GCEHA.3404@TK2MSFTNGP10.phx.gbl...
> Can anyone clarify this message for me?
> A couple of people here have received the following delivery failure
> message(s):
> The following recipient(s) could not be reached:
>
> User1@company.com on 3/12/2004 1:17 PM
>
> The e-mail address could not be found. Perhaps the recipient moved to a
> different e-mail organization, or there was a mistake in the address.
Check
> the address and try again.
>
> <ma2.meachamapel.com #5.1.8 smtp;501 5.1.8 Sender domain must have a DNS
MX
> or A/CNAME record.>
>
>
> Could not deliver message to the following recipient(s):
> Failed Recipient: user2@company.com
>
> Reason: Remote host said: 501 5.1.8 Sender domain must have a DNS MX or
> A/CNAME record.
>
> As far as I know, this is only happening when sending to this company,
> though multiple users at that company. This would make me suspect that
this
> issue is on their end, not ours. I also found one article on google that
> seemed to suggest that it would be their end. However, the message itself
> appears that it's talking about our domain being the problem, and I'd like
> to rule that out completely before I go telling the other company that
it's
> their problem.
>
> Can anyone clarify for me what end this type of issue is on and what
should
> be done for it? To my knowledge, we have not changed anything locally
with
> our DNS. Does our ISP need to change something for us?
>
> I appreciate any advice or input...I'm still feeling a little fuzzy on
DNS.
> Thank you!
>
>
| |
| Peter D. Hipson 2004-03-13, 9:34 am |
| The receiver's domain SMTP server is trying to authenticate the
sender's domain. It does this with a DNS lookup, and trying to match
with the one given by the sending SMTP server. If they match, the
sender is allowed, if they don't match then the sender is assumed to
be either a virus or SPAM.
It is possible that the receiver's system has something setup wrong,
or your DNS reverse lookup doesn't match your sending domain name
(this often happens when your ISP fills the reverse lookup with their
in-house names for management purposes.)
You may want to try a reverse lookup on yourself, and compare it with
the domain name coming from your SMTP connections. (Send an email to
yourself at a different email address, then check those headers for
names, looking at the 'Received:' headers.)
On Fri, 12 Mar 2004 15:18:47 -0500, "Jenna" <stilesj AT meachamapel
DOT com> wrote:
>Can anyone clarify this message for me?
>A couple of people here have received the following delivery failure
>message(s):
>The following recipient(s) could not be reached:
>
>User1@company.com on 3/12/2004 1:17 PM
>
>The e-mail address could not be found. Perhaps the recipient moved to a
>different e-mail organization, or there was a mistake in the address. Check
>the address and try again.
>
><ma2.meachamapel.com #5.1.8 smtp;501 5.1.8 Sender domain must have a DNS MX
>or A/CNAME record.>
>
>
>Could not deliver message to the following recipient(s):
>Failed Recipient: user2@company.com
>
>Reason: Remote host said: 501 5.1.8 Sender domain must have a DNS MX or
>A/CNAME record.
>
>As far as I know, this is only happening when sending to this company,
>though multiple users at that company. This would make me suspect that this
>issue is on their end, not ours. I also found one article on google that
>seemed to suggest that it would be their end. However, the message itself
>appears that it's talking about our domain being the problem, and I'd like
>to rule that out completely before I go telling the other company that it's
>their problem.
>
>Can anyone clarify for me what end this type of issue is on and what should
>be done for it? To my knowledge, we have not changed anything locally with
>our DNS. Does our ISP need to change something for us?
>
>I appreciate any advice or input...I'm still feeling a little fuzzy on DNS.
>Thank you!
>
PeterD, the Darkstar Network
To email, fix my address!
ExpertZone!
| |
| Jenna 2004-03-15, 11:36 am |
| Okay, I sent an email to myself from my hotmail account to my work email. I
did it from my work computer, as that was most convenient, so I hope that is
okay.
These are the Received headers I got:
Received: from hotmail.com ([127.0.0.1]) by ma2.meachamapel.com with
Microsoft SMTPSVC(6.0.3790.0);
Mon, 15 Mar 2004 07:48:43 -0500
Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC;
Mon, 15 Mar 2004 04:49:28 -0800
Received: from 24.123.142.66 by by99fd.bay99.hotmail.msn.com with HTTP;
Mon, 15 Mar 2004 12:49:27 GMT
Now 24.123.142.66 is our public IP and ma2.meachamapel.com is our mail
server. If I go to http://network-tools.com/default.asp and ping
meachamapel.com I get the correct IP and aliases of primary.meachamapel.com
and www.meachamapel.com
Pinging ma2.meachamapel.com gets nothing. Even though this is an internal
mail server, should it be listed as an alias for the public IP? (I believe
primary.meachamapel.com was our mail server originally several years ago,
but we've never had a problem with this being the alias until the issue with
this specific company now).
Thanks for your help!
"Peter D. Hipson" <mcn01 at hipson dot net> wrote in message
news:ti46505gg7420a6pj5gugfg1q4psj4ugod@
4ax.com...
> The receiver's domain SMTP server is trying to authenticate the
> sender's domain. It does this with a DNS lookup, and trying to match
> with the one given by the sending SMTP server. If they match, the
> sender is allowed, if they don't match then the sender is assumed to
> be either a virus or SPAM.
>
> It is possible that the receiver's system has something setup wrong,
> or your DNS reverse lookup doesn't match your sending domain name
> (this often happens when your ISP fills the reverse lookup with their
> in-house names for management purposes.)
>
> You may want to try a reverse lookup on yourself, and compare it with
> the domain name coming from your SMTP connections. (Send an email to
> yourself at a different email address, then check those headers for
> names, looking at the 'Received:' headers.)
>
> On Fri, 12 Mar 2004 15:18:47 -0500, "Jenna" <stilesj AT meachamapel
> DOT com> wrote:
>
Check[color=darkred]
MX[color=darkred]
this[color=darkred]
itself[color=darkred]
like[color=darkred]
it's[color=darkred]
should[color=darkred]
with[color=darkred]
DNS.[color=darkred]
>
> PeterD, the Darkstar Network
> To email, fix my address!
> ExpertZone!
|
|
|
|
|