Rule imposed mailbox access for <> refused. Mail Relay Denied
MSExchangeStudent
Hi all
Yesterday all of a sudden some of my users got this strange error when
sending mail out.Some of the people outside also tried to send us mails but
it bounce with the following message : Could not be delivered because of
550 rule imposed mailbox access for us...@domain.co.za refused.Mail relay
denied
As far as i know we SMTP through our ISP because their servers are listed
under Default SMTP server > Properties > Access > Relay > Only the list
below is ticked off and their 2 servers IP's is in the list. Does this
configuration mean we SMTP through them?
So can i blame them for our users getting the errors?
The ONLY thing i did 2 days ago on the exchange is to install MS Antigen for
Exchange - assume this wont cause issues.
Thanks for the help
Lanwench [MVP - Exchange]
> Hi all
>
\\
> Yesterday all of a sudden some of my users got this strange error when
> sending mail out.Some of the people outside also tried to send us
> mails but it bounce with the following message : Could not be
> delivered because of 550 rule imposed mailbox access for
> us...@domain.co.za refused.Mail relay denied
The same NDR was received by your users trying to send mail *out* as well as
by senders trying to send mail *in* ? That doesn't sound like an Exchange
message to me, but what version & SP level of everything?
>
> As far as i know we SMTP
Hmmm...that's a verb now?
> through our ISP because their servers are
> listed under Default SMTP server > Properties > Access > Relay > Only
> the list below is ticked off and their 2 servers IP's is in the list.
> Does this configuration mean we SMTP through them?
No - it would mean they could relay through *you*. I'd remove those, pronto.
If you were using your ISP as a smarthost you'd have an SMTP connector with
their server listed.
>
> So can i blame them for our users getting the errors?
Unlikely, no.
> The ONLY thing i did 2 days ago on the exchange is to install MS
> Antigen for Exchange - assume this wont cause issues.
Never assume. :-)
>
> Thanks for the help
MSExchangeStudent
"Lanwench [MVP - Exchange]"
<lanw...@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote in message
news:uzywtmkS...@TK2MSFTNGP02.phx.gbl...
> MSExchangeStudent <exchang...@newsgroups.com> wrote:
>> Hi all
>>
> \\
>> Yesterday all of a sudden some of my users got this strange error when
>> sending mail out.Some of the people outside also tried to send us
>> mails but it bounce with the following message : Could not be
>> delivered because of 550 rule imposed mailbox access for
>> us...@domain.co.za refused.Mail relay denied
>
> The same NDR was received by your users trying to send mail *out* as well
> as by senders trying to send mail *in* ? That doesn't sound like an
> Exchange message to me, but what version & SP level of everything?
Exch 2003 SP2 and outlook 2003
>>
>> As far as i know we SMTP
>
> Hmmm...that's a verb now?
>
>> through our ISP because their servers are
>> listed under Default SMTP server > Properties > Access > Relay > Only
>> the list below is ticked off and their 2 servers IP's is in the list.
>> Does this configuration mean we SMTP through them?
>
> No - it would mean they could relay through *you*. I'd remove those,
> pronto.
Can these settings do any harm at all if i take there servers away?
> If you were using your ISP as a smarthost you'd have an SMTP connector
> with their server listed.
OK, there servers are listed on the General tab of my internet connector
under "Forward all mail through this connector to the following smart hosts"
these would mean that i use their servers as SMTP servers hey?
>>
>> So can i blame them for our users getting the errors?
>
> Unlikely, no.
Well, if i go look in the Tracking Centre it shows that the message (all
outgoing mails ) is being routed to the SMTP server of the ISP. Where do the
NDR then all of a sudden came from?
The NDR llok like this when someone try to send out: (We'll as far as i know
it hasn't happened today after i logged the call with my ISP...so i assume
they sorted it out - there i'm assuming again :)
From: System Administrator
Sent: Tuesday, November 18, 2008 1:58 PM
To: <>
Subject: Undeliverable: Banking Detials
Your message did not reach some or all of the intended recipients.
Subject: Banking Detials
Sent: 11/18/2008 1:58 PM
The following recipient(s) could not be reached:
<person where mail must go to on the outside>on 11/18/2008 1:58 PM
There was a SMTP communication problem with the recipient's email server.
Please contact your system administrator.
<Myservername.local #5.5.0 smtp;550 Rule imposed mailbox access for < adress
of recipient>refused. Mail Relay D
Lanwench [MVP - Exchange]
> "Lanwench [MVP - Exchange]"
> <lanw...@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote in
> message news:uzywtmkS...@TK2MSFTNGP02.phx.gbl...
>> MSExchangeStudent <exchang...@newsgroups.com> wrote:
>>> Hi all
>>>
>> \\
>>> Yesterday all of a sudden some of my users got this strange error
>>> when sending mail out.Some of the people outside also tried to send
>>> us mails but it bounce with the following message : Could not be
>>> delivered because of 550 rule imposed mailbox access for
>>> us...@domain.co.za refused.Mail relay denied
>>
>> The same NDR was received by your users trying to send mail *out* as
>> well as by senders trying to send mail *in* ? That doesn't sound
>> like an Exchange message to me, but what version & SP level of
>> everything?
>
> Exch 2003 SP2 and outlook 2003
OK.
>
>>>
>>> As far as i know we SMTP
>>
>> Hmmm...that's a verb now?
>>
>>> through our ISP because their servers are
>>> listed under Default SMTP server > Properties > Access > Relay >
>>> Only the list below is ticked off and their 2 servers IP's is in
>>> the list. Does this configuration mean we SMTP through them?
>>
>> No - it would mean they could relay through *you*. I'd remove those,
>> pronto.
> Can these settings do any harm at all if i take there servers away?
>
>> If you were using your ISP as a smarthost you'd have an SMTP
>> connector with their server listed.
> OK, there servers are listed on the General tab of my internet
> connector under "Forward all mail through this connector to the
> following smart hosts"
> these would mean that i use their servers as SMTP servers hey?
Yes.
>
>
>>>
>>> So can i blame them for our users getting the errors?
>>
>> Unlikely, no.
> Well, if i go look in the Tracking Centre it shows that the message (all
> outgoing mails ) is being routed to the SMTP server of the ISP.
> Where do the NDR then all of a sudden came from?
>
> The NDR llok like this when someone try to send out: (We'll as far as
> i know it hasn't happened today after i logged the call with my
> ISP...so i assume they sorted it out - there i'm assuming again :)
> From: System Administrator
> Sent: Tuesday, November 18, 2008 1:58 PM
> To: <>
> Subject: Undeliverable: Banking Detials
>
> Your message did not reach some or all of the intended recipients.
>
> Subject: Banking Detials
>
> Sent: 11/18/2008 1:58 PM
>
> The following recipient(s) could not be reached:
>
> <person where mail must go to on the outside>on 11/18/2008 1:58 PM
>
> There was a SMTP communication problem with the recipient's email
> server. Please contact your system administrator.
>
> <Myservername.local #5.5.0 smtp;550 Rule imposed mailbox access for <
> adress of recipient>refused. Mail Relay D
That's an issue on the recipient's server, not yours or the ISP/SMTP relay
host.