Re: Reason for mail sending fails ???

Kevin Weilbacher has this:

http://msmvps.com/blogs/kwsupport/archive/2005/10/08/69816.aspx

--
Les Connor [SBS-MVP]


____________________________
"calderara" <calderara@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:827C8FBE-6FDF-49C4-A1AD-1768E520F3F4@xxxxxxxxxxxxxxxx
Here is what I get when I set my ISP mail server in SMTP connector

serge.calderara@xxxxxxxxxxxx on 11/13/2008 23:45
There was a SMTP communication problem with the recipient's email server.
Please contact your system administrator.
<solatys.com #5.5.0 smtp;503 This mail server requires authentication when
attempting to send to a non-local e-mail address. Please check your mail
client settings or contact your administrator to verify that the domain or
address is defined for this server.>

Any idea where I can set this authentication ?
"Les Connor" wrote:

Nevermind - I see the issue is probably the public IP range you're on, and
smarthost instead of _via DNS_ should resolve the problem. You only need to
discover your ISP's mail server IP and use that as the smarthost.

--
Les Connor [SBS-MVP]


____________________________
"Les Connor" <les.connor@xxxxxxxxxxxx> wrote in message
news:O4w%23yxdRJHA.1144@xxxxxxxxxxxxxxxxxxxxxxx
> Spamhaus doesn't black list for no reason. Click on their link in that
> NDR, and they can help you determine the problem.
>
> Smarthost will only transfer the problem, as you'll have your smarthost
> (ISP) screaming at you next ;-/.
>
> -- > Les Connor [SBS-MVP]
>
>
> ____________________________
> "calderara" <calderara@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:47BE63AD-51AB-4E7E-A10E-3FD1C5EE515A@xxxxxxxxxxxxxxxx
>> HI Brian, thnaks for youir reply
>> I guess even its along time you have not setup a sbs I think we are >> nealr
>> yon the right dirtection..
>> It is absolutly tue that time to time, some reciepient receive there
>> email
>> and sometime not..And now that you are talking about black list for >> most
>> all
>> home network IP...hmm I guess we nearly reach the point becasue today >> I
>> just
>> try to send an email to a guy that I am sure the adress is valid and >> here
>> is
>> what I get in return :
>>
>> The following recipient(s) could not be reached:
>>
>> john.mccormack@xxxxxxxxxxxxx on 11/13/2008 22:15
>> The e-mail system was unable to deliver the message, but did not >> report
>> a
>> specific reason. Check the address and try again. If it still fails,
>> contact
>> your system administrator.
>> < mail123-wa4-R.bigfish.com #5.0.0 X-Postfix; host
>> winse-6216-mail4.customer.frontbridge.com[131.107.115.212] said: 550
>> 5.7.1
>> Email rejected because 91.172.8.39 is listed by sbl-xbl.spamhaus.org.
>> Please
>> see http://www.spamhaus.org/query/bl?ip=91.172.8.39 for more >> information.
>> (in
>> reply to end of DATA command)>
>>
>> And of course I am sure about this adress.
>> WHat I have verify if the config of my SMTP connector and as I did not
>> change anything here, default settings is :
>> (*)Use DNS to route to each address space on this connector
>>
>> So as I do not have a fixed IP adress, it means I have to use the >> other
>> option
>> (*) Forward all mail through this connector to the following smart >> hosts
>> right ?
>>
>> And what should I place in ? same format as If I were setting the smtp
>> account on a normal email client ?
>>
>> regards
>> serge
>>
>>
>> "Brian Cryer" wrote:
>>
>>> "calderara" <calderara@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>>> news:26E52AC0-F30F-45EF-A9C2-43BE87558483@xxxxxxxxxxxxxxxx
>>> > If POP 3 connector is only use to recieve email, how my email can >>> > be
>>> > delivered to my private mail box from my laptop outlook client >>> > through
>>> > my
>>> > exchange server ?
>>> >
>>> > What do you mean by smarhost ???
>>>
>>> SBS has two ways of sending email:
>>>
>>> The first is for each email SBS (or rather Exchange - the software
>>> running
>>> on SBS) does the delivery itself. So it looks up the domain that the
>>> email
>>> goes to, tries to contact the email server at that domain to deliver >>> the
>>> email, and retries if it was unsuccessful.
>>>
>>> The second is to use a "smarthost". A smarthost is simply a way of
>>> delegating the delivery to another server. Typically the smarthost is
>>> set up
>>> to point to your ISP's SMTP server. Each time you send an email that
>>> email
>>> is forwarded to the smarthost (i.e. your ISP) for delivery.
>>>
>>> Out of the box I think it doesn't use a smarthost (but its been a >>> while
>>> since I last installed SBS). Somewhere along the way it may ask if >>> you
>>> want
>>> to use a smarthost, so if you entered your ISP's SMTP server then it
>>> might
>>> be otherwise it won't.
>>>
>>> However, in order to tell for sure which you are using try this:
>>>
>>> Start > All Programs > Microsoft Exchange > System Manager
>>> Expand "Connectors"
>>> Right click "SmallBusiness SMTP connector" and select "Properties"
>>> On the "General" tab you will have one of the following selected:
>>> ( ) Use DNS to route to each address space on this connector
>>> (*) Forward all mail through this connector to the following smart >>> hosts
>>>
>>> Why might you want to use a smarthost? There are other reasons but
>>> typically
>>> its if your IP address is on one or more blacklists (which it may be >>> if
>>> its
>>> a dynamic or domestic ip for example). A smarthost isn't always a >>> good
>>> idea,
>>> for example where I am now we don't use a smarthost because our ip >>> isn't
>>> on
>>> any blacklists (afaik) whereas our isp's smtp server is.
>>>
>>> I think that answers both of your two questions.
>>>
>>> > Sorry for basic questionbut I am not familar with all this
>>>
>>> Not a problem.
>>>
>>> Now, my best guess a the cause of your problem:
>>>
>>> I suspect that you are not using a smarthost, but your Exchange >>> server
>>> is
>>> sending out emails itself. Since (in a reply to Russ) you mentioned >>> that
>>> your SBS server is at home it is quite likely that your home IP >>> address
>>> is
>>> on one or more blacklists. Some blacklists list IP addresses that are
>>> allocated for home internet connections. (The rational being that >>> most
>>> home
>>> users don't send emails directly but via their ISP so any emails >>> coming
>>> from
>>> a home internet connection are more likely to be spam.)
>>>
>>> If your IP address is on a blacklist then some recipients will >>> receive
>>> your
>>> emails whilst others won't. Whether or not they receive your email
>>> depends
>>> on which blacklists their email system uses.
>>>
>>> The work around is simply to enable a smarthost and get your Exchange
>>> server
>>> to use your ISP's STMP connection - this is the same connection that >>> you
>>> will have used before you installed SBS.
>>>
>>> Hope this helps.
>>> -- >>> Brian Cryer
>>> www.cryer.co.uk/brian
>>>
>>>
>



.

Relevant Pages

  • RE: SMTP Mail service not connectiong
    ... It looked like had a faulty SMTP connector and reset the Email ... > connector in the Exchange Server? ... > This newsgroup only focuses on SBS technical issues. ...
    (microsoft.public.windows.server.sbs)
  • RE: SBCs SMTP server quit working with SMTP connector
    ... SMTP connector and default SMTP virtual server. ... > Thank you for posting in the SBS newsgroup. ...
    (microsoft.public.windows.server.sbs)
  • RE: Cant Send Mail - SMTP Issues
    ... Internet mail server does not have the correct DNS configuration required ... AOL.com also requires that for every inbound SMTP connection, ... SMTP connector in SBS 2k3 is automatically ... Microsoft CSS Online Newsgroup Support ...
    (microsoft.public.windows.server.sbs)
  • RE: SBCs SMTP server quit working with SMTP connector
    ... Thank you for posting in the SBS newsgroup. ... Connector and Default SMTP Virtual Server. ...
    (microsoft.public.windows.server.sbs)
  • RE: Your message did not reach some or all of the intended recipie
    ... 'SmallBusiness SMTP connector' Properties? ... Please also make sure Default SMTP Virtual Server is listening 'All ... Microsoft CSS Online Newsgroup Support ...
    (microsoft.public.windows.server.sbs)