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Yes it does still hang with a new message after I paste the body from the haning email and try and send it. &nbsp;I will try these suggestions thank you!
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Yes it does still hang with a new message after I paste the body from the haning email and try and send it.  I will try these suggestions thank you!

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one of our clients is running exchange 2003 SP2, all the users have an issue in OWA when they respond to certain emails... it will just sit there and hour glass at &quot;sending email&quot;, we have to close out of the email and it never goes out.<br />
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This does not happen in the Outlook client, only while in OWA. &nbsp;It does not happen to all emails only certain emails and I have noticed that it seems to have to do with the email content... when I delete almost all of the content, imagaes etc., it will send out fine. &nbsp;When I copy the content of the email and paste it in a new email I still experience the issue sending so it definitely has to do with the email content. 
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one of our clients is running exchange 2003 SP2, all the users have an issue in OWA when they respond to certain emails... it will just sit there and hour glass at "sending email", we have to close out of the email and it never goes out.

This does not happen in the Outlook client, only while in OWA.  It does not happen to all emails only certain emails and I have noticed that it seems to have to do with the email content... when I delete almost all of the content, imagaes etc., it will send out fine.  When I copy the content of the email and paste it in a new email I still experience the issue sending so it definitely has to do with the email content. 

OWA hangs when sending certain emails

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.

Email Clients

Web development software is used to create websites for both the Internet and intranets. Software can be either locally installed or operated through a cloud interface, and ranges in complexity from simple text editors to full-fledged integrated development environments (IDEs) that include graphics, video, audio, scripting and database support.

Web Development Software

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.