Hello guys, I am still learning, so please forgive my ignorance. Company A has *.com in the send connector, it means that those email addresses that end with .com are able to receive emails from Company A, does it not? If yes, why do I see that there are xxxx.com, yyyy.com, zzzz.com and many others.. Isn't having *.com enough to represent all the email addresses that end with .com? Also, does it mean that if I don't include .co.uk in the send connector, then email addresses that end with .co.uk are unable to receive emails from Company A? Thank you very much in advance.Never stop learning

Send Connector is for sending email out to another server or the Internet. If you only have a send connector with *.com then that connector will only route email for any domains ending in .com. Having specific domains also in that list is a waste of time. However it is very unusual to have a send connector configured in that way. It is usually * (all domains) or specific domains. I don't think I have ever configured a connector for a TLD like .com, co.uk etc. Unless you have a connector with * in it somewhere, then you could find that the server is unable to send email to any other domains. There are other domains other than .com - even though most American's don't seem to think so. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me.

For receiving mail, you have receiveconnectors. Who can send mail to them depends on IP, authentication methods together with permission set on the receiveconnector. For Sending mail you have sendocnnectors. They aer used depending on the destination domain and the address speace as Simon explained. lasse at humandata dot se, http://anewmessagehasarrived.blogspot.com

Hi, Exchange 2010 transport servers require Send connectors to deliver messages to the next hop on the way to their destination. A Send connector controls outbound connections from the sending server to the receiving server or destination e-mail system. By default, no explicit Send connectors are created when the Hub Transport server role or the Edge Transport server role is installed. So, when company A has *.com in the send connector, it means that the connector can router emails to any domain ending with .com. When you see that there is xxxx.com, yyyy.com, zzzz.com and many others in send connector, the configurations have their detail needs and are normal. If you don’t include .co.uk in the send connector, the connector can’t route emails to the domains ending with .co.uk. For more information, you can refer to the article ‘Understanding Send Connectors’. Hope this helps. ThanksSophia Xu

Thank you very much, Sembee, Lasse Pettersson and Sophia Xu!Never stop learning