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My Boss told to check Message Labs, please tell where to and what to check.
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My Boss told to check Message Labs, please tell where to and what to check.

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And what is exactly your problem? I not understand.<br />
Mail from yahoo to your server not arrival?
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And what is exactly your problem? I not understand.
Mail from yahoo to your server not arrival?

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Yahoo is more concerned with blocking spam than delivering email. &nbsp;If your email looks like spam, it is often deleted without notice.
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Yahoo is more concerned with blocking spam than delivering email.  If your email looks like spam, it is often deleted without notice.

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There is settings in message labs where we check the delivery.
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There is settings in message labs where we check the delivery.

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There is one user who has a problem:-<br />
&quot;I have a big problem as I have many people who used “Yahoo” as email for RVP group and they did never receive my confirmation and I didn't receive any error message !!<br />
Can you please check what’s happened on our side with the IT or the server of the Organisation.&quot;<br />
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My organisation uses EXCHANGE 2007 and 2010. So how can i check user's issue.
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There is one user who has a problem:-
"I have a big problem as I have many people who used “Yahoo” as email for RVP group and they did never receive my confirmation and I didn't receive any error message !!
Can you please check what’s happened on our side with the IT or the server of the Organisation."

My organisation uses EXCHANGE 2007 and 2010. So how can i check user's issue.

YAHOO EMAIL

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.