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SMTP connector

MyCompany.com is hosed by vendor and only provider POP3 & SMTP service.
SiteA and SiteB share the same domain name for email service - User@MyCompany.com

We want to use Exchange 2010 to centralize management for SiteA only.
And must use existing domain name and do not affect SiteB/vendor.

As i know, we can use third party POP3 connector(MAPILab POP3 Connector) to collect emails into our Exchange server. However, how can we handle the send out part?
If i use same domain name MyCompany.com in Exchange 2010, how to prevent out going email blocked due to non-authorized SMTP IP?
Is it possible to tell the Exchange to send email by using vendor's SMTP server and corresponding user name with password?
Or any third party software can do the same function as the POP3 connector?
Thanks a lot.
0
dickchan
Asked:
dickchan
1 Solution
 
AkhaterCommented:
You do have quite a few options

1. you need to set in exchange 2010 your MyCompany.com as internal relay
2. you need to create a send connector that send emails to mycompany.com to the SMTP the vendor

the above will result that you will be able to send email to users @mycompany.com that are located in SiteB and not in SiteA

to Send emails to the external world options are

1. You add the IP of your exchange server in the SPF record of mycompany.com and this will solve the problem
2. you as your vendor to allow relaying to the IP of your exchange server and you create a send connector to send all your emails through the SMTP of ISP
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