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You were correct that it was not our exchange causing the problems. The Spam Filtering Company had an IP address change and failed to inform us therefore I didn't change the firewall config to allow the connection.<br />
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Thanks
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You were correct that it was not our exchange causing the problems. The Spam Filtering Company had an IP address change and failed to inform us therefore I didn't change the firewall config to allow the connection.

Thanks

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I need some help. I don't know where to start. I am having some major Exchange issues where users are intermittently not receiving their e-mail. I attempted to replicate the problem and have seemed to do so. I sent myself an email using hotmail and yahoo. I recieved the hotmail but not the yahoo. I have rebooted the server to rule out a hung application and did not see any errors or warnings in my even log that could suggest a malfunctioning service. It is quite baffling. The queses are not filled nor do they have anything in them. Our spam box is not receiving the missing mail either. Please help. 
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I need some help. I don't know where to start. I am having some major Exchange issues where users are intermittently not receiving their e-mail. I attempted to replicate the problem and have seemed to do so. I sent myself an email using hotmail and yahoo. I recieved the hotmail but not the yahoo. I have rebooted the server to rule out a hung application and did not see any errors or warnings in my even log that could suggest a malfunctioning service. It is quite baffling. The queses are not filled nor do they have anything in them. Our spam box is not receiving the missing mail either. Please help. 

Users not recieving Mail intermittent

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

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.

Email Software

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.