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Best, Lindie Moderator
Thank you for the reply.
I have tried sending from Outlook, OWA and my iphone. Akll act the same way and bounce any message to a @gmail.com account.
My exchange server is netricks.com. I have it running through mxguarddog.com spam filtering.
I have not tried SMTPDiag.
I will try it. Ill be at the office in about an hour.
I am not in a DMZ.
This is the exact message i get.
Your message did not reach some or all of the intended recipients.
Thanks again for your help.
Now on to how to properly use SMTPDiag, just in case you are unable to find the download or use it.
SMTP Diagnostic tool (free from microsoft) is a tool designed to send a "test" smtp message from your organization to an outside organization. It will provide verbose output to tell us where it failed (DNS errors usually; mx, soa, ect).
You can download SMTPDiag from here: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=bc1881c7-925d-4a29-bd42-71e8563c80a9
Its a small download that will go on the Exchange server. You will extract the SMTDiag.exe file (its a command line based tool) to your desktop, and then move it to the root of the C:\ drive.
What you want to do next is open a command line and run the following commands:
1) CD C:\ (or whatever directory you moved the SMTPDiag file to)
2) smtpdiag firstname.lastname@example.org email@example.com
3) press enter and paste the output here.
Now, you are obviously going to change the firstname.lastname@example.org to a real email, and same with the gmail.
I will also need to know more about your archtecture of your exchange env. as asked above.
Thank you for the information. You are just using a hub transport server correct?
Do you receive SMTP Error 5.7.1 for any other recipients? How many users within this Exchange organization are unable to send email to the gmail.com fqdn?
Reason I am asking is because SMTP Error 5.7.1 is a "unable to relay" error message.
You may want to check the hub transport settings as described here:
You may also want to check the settings on the spam filter and whitelist *@gmail.com as an acceptable sending domain.
Cool, Thanks, XXXXX XXXXX do that when i get there. My network is simple.
SBS 2003 server
Comcast Business ISP with the modem in bridge mode. Then I have a linksys router. Simple switch and 8 windows PCs and 1 linux and i mac box.
I run avira business class antivirus. Nothing else fancy. Business apps, thas all.
No one in my network can send to gmail accounts.
When looking into this further I will really need to see the SMTPDiag to get any further.
I looked into your spam filter as all your MX records point there, and that seems proper. No RBLs on any of them (checked through mxtoolbox).
Wierd part is this. I attempted to telnet on port 25 to the ip address in the NDR, and it fails. This might be from firewall rules/settings, but if I cannot do a EHLO test, then there is little I can do from here.
The 5.7.1 message shows you are unable to relay. Look at the send connectors on the hub transport server and make sure your spam filter settings on MX Guarddog are configured correct.
When you post the SMTPDiag output I will be able to further assist.
It all of a sudden started working again. I did not do a darn thing.
Thanks for the tips on SMTP Diag.
I ran that and it looks good...
So i then tested my email again and it now goes through.
Now i teswted again today and it is failing again.
i ran Smtpdiag again and got the same results as before. Exactly.