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Delivery is delayed to these recipients or groups: -

Posted on 2011-09-14
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Last Modified: 2013-02-20
I have a client who is running Exchange 2007/SBS 2008.  There are 8 users on his domain.  3 of the users are able to send mail to a client while the other 5 get the "Delivery is delayed to these recipients or groups:"

Can anyone guess why some e-mails work whiile others from the same domain, same server and same IP address cannot?

thanks
Rich
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Question by:webentpr
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by:Alan Hardisty
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This will usually down to something like an auto-signature at your end upsetting the Anti-Spam software at the recipient end, or their anti-spam software randomly rejecting their messages.

Either way, I would contact the receiving end's IT department and ask them why some of your users can send mail and some cannot.

Do any of the problem users have an Auto-Signature that is common and the users who can get mail through don't, or have a different one?

It could be something as daft as a telephone number that triggers their software!!
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by:webentpr
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Thanks for the response - I really appreciate it.  During our testing we did it with and without signature blocks.  The recipients are only using POP3 through Outlook.  I’ve tried contacting his ISP support but they have not responded back.

I will contact them again and will keep you posted.

Thanks
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by:webentpr
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Well - the stuff hit the fan today.  I contacted the technical support group for the recipient’s email account.  Tech support, I and the recipient were on the phone together.  I sent mail from one of the problem accuonts - it reached the tech support guy and my mail.  It did not reach the original recipient.   The Tech said he was going to escalate to level 2.  

An hour later the original recipient calls me saying his tech support person shutdown his mail and it would be down for 2 hours.  Somehow he blamed me for this.  

I logged onto the server and sent an email to the domain.  The delivery Type DnsConnectoDeliver and the queue count is 1 and the status is Active.  Other mails is going out but this one is still in the outbox.
Is there a something I can check to correct DnsConnectorDelivery ?
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by:Alan Hardisty
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Sounds like they have some issues to fix.  Nothing you can do but wait it out and see what they say.

The DNSConnector issue sounds like their server still not accepting your mail to this person, so I would wait for a response and see what they say.

An alternative is to send mail to this domain via a new SMTP Connector configured to send mail just for this domain and sent via your ISP's mail server, but you then lose the ability to see what is going on, which you either care or don't care about.
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by:webentpr
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HI -

Thank you so much for your response.  Unfortunately their tech group said the mail never hit their network and it is not something they will work on.  Their position is this is now our problem.  I will be honest I am not sure how to do the SMTP Connector - is that through the Hub?  Would I be better off creating a POP3 account as a default account on their desktop and not use the server to send?  Sorry - I sound like an novice.
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Alan Hardisty earned 500 total points
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Don't worry - I've been doing this stuff for longer than I can remember, so it's 2nd nature for me.

So why would they take down his mail if the problem is on your side?

I'm working on too many questions - talking Exchange 2003 in this one when I should be talking 2007!  Please have a read of the following article for how to set up a new SEND Connector:

http://www.petri.co.il/configuring-exchange-2007-send-connectors.htm

Add the remote domain to the SMTP Address Space and then your ISP's mail server in the Smart Host option and that should send the mail out to your ISP's mail servers for them to pass on to the domain.  You then have to pray it gets there.
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by:webentpr
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Thank you so much - I really can't thank you enough.

I am going to try this tomorrow morning and will let you know how it works.  It has been a long day and I am working my way through some health issues that are a bit draining.

Thanks again, and I will post tomorrow morning the results.
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by:Alan Hardisty
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It's my pleasure.  Fingers crossed it irons out the wrinkles!

Hope you get better soon and start firing on all four cylinders.  Until then - shout if you need anything else Exchange related.

Best wishes

Alan
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by:webentpr
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Hi Alan,

Thanks for the link - I added the SMTP and ran it but it did not work.  I was then able to access the queue and look at the queued record.  There is an error -

451.4.1.8 - Domain of sender address user@xxx does not resolve.  It turns out during the setup of the server one of the users contacted a friend who setup alternative MX record.  Unfortunately that user is out of the country right now and I have to wait for him to get back.

I will go to dnsstuff.com and see what I can figure out in the meantime.  Chemo is less time consuming than tihis :-)

thanks
Rich
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Author Closing Comment

by:webentpr
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Great help - Alan made the solution easy enough to follow.

thank you
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by:Alan Hardisty
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Thanks for the points.  Sounds like you might not be RFC compliant - drop me an email and I'll see what my anti-spam software makes of you and I can advise what might need rectifying.

Hopefully the Chemo reference isn't related to your health issues, but if it is, I'm keeping my fingers crossed for you.

Alan
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by:webentpr
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HI Alan,

Unfortunately that is related - but making progress and hopefully I will gt through this by the end of October.  Except for a little fatigue - I really feel great. Thanks for the wishes - really appreciated.

Thanks for the points?  Gosh that was the least I could do - I know you must have much more important things to do.

I truly appreciate the follow-up - I will send an e-mail shortly -

thanks again,
Rich
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by:Alan Hardisty
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Oh boy - sorry to hear about the Chemo.  Hope it doesn't make you feel too nauseous.  Not sure if you have heard about this company, but my business partner is a very good friend of the owner and we recently started looking after their IT:

http://www.msc-worldwide.com/

If you have lost your locks already - then it's probably too late, but this product can help you not to apparently.

Let me know when you have fired me an email and I'll keep an eye out for it / check my anti-spam logs for it.

Alan
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by:webentpr
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Thank Alan,

Other than leukemia I am pretty fit and will be 62 next month.  I do a lot of work with the Special Olympics and coached/manager 3 adult women softball teams.  I am constantly running around and was truly surprised when I was diagnosed last month.  

My Chemo was using a drug called dacogen – which is protocol they give to people over 60.  I finished my first round 2 weeks ago and will take a second  round starting Monday.  24 days later they will see if I am in remission.  

The nice part of dacogen is it is easily tolerated.  At my age I have more hair on the rest of my body than I do on my head.  Saying all that – I really had no side-effects.  I am supporting the clients and yesterday I found a young man who is willing to make the office calls for me in NY.  I would rather stay out of trains and subways until my counts come back.   Hopefully my second round of chemo will put me in remission.  If the second round doesn’t put me remission then we go with the regular chemo (the doctor said I am a great candidate for it – which kind of make me wonder why we didn’t do that to begin with).

Hopefully this be a bad memory in a year

I will keep the site - thanks - just iin case.
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Expert Comment

by:JeremyRichards
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Thanks Alan!  Experts Exchange truly is the best source for resolving IT related issues.
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