SMTP relay

We are relaying our mails through our service provider , please let me know whether any mails will get blocked in the relay server due to any reason.
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What are you trying to solve here Wil ?
I think mentioning who is your service provider will be a good starting point.
WILSON123JAuthor Commented:
Our local ISP is etisalat UAE , we are facing DNS issues and many mails are bouced back or delay in delivery. Now we are relaying mails through our service provider where our domain is hosted and this is in USA - World link communications.
Can you post an error message that comes with the bounce back ?
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WILSON123JAuthor Commented:
Here the issue is , mails are not bouncing back and not reaching recepient. Thats the reason i am
asking whether  any possibiltiy of mails getting filtered as spam or something in relay server.
In this particular case I would diagnostic the transmission by using SMTPDIAG from Microsoft.
This tool is free to use

Just expand the file on your drive. Open a command window and point to the folder you expanded it.

Then type:  smtpdiag -d DNSSERVERIP /v

The first is your email address
The second is your destination email address
the third "-d" is the DNS IP used to solved all MX Queries
The last "/v" = verify and returns all details for each steps

You'll get a result of of this test. Copy it and paste it here.
So this way you'll have something to work with.

Also try to be as specific as possible. In one of your message you say that emails are bouncing back and in the next one, you say it doesn't. This will really help me to help you ;-)

WILSON123JAuthor Commented:
Will i get the SMTPDIAG output as a mail or any otherway . should i do this from exchange server. I did this command from my PC. I have not received any output.

All the results will output at your command window.
You don't need to run SMTPDIAG on your exchange server in order to perform a diagnostic.
But you need to launch it from the folder where it's located.

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WILSON123JAuthor Commented:
Thanks a lot , i got the output.
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