• Skype For Business We Couldn 27t Send This Message Macos
• Skype For Business We Couldn 27t Send This Message Machine

• You will receive “Sender sent you a message in Skype for Business” or “Missed conversation with Sender” email if more than one message was sent. If you do not click either option, after 30 seconds the message opens on a PC, and appears as read on mobile.
• Skype for Business users can share their screen with attendees during a call or even conduct a webinar easily. Here are the steps to start a video conference in Skype for Business: Step 1: Launch your Skype for Business application and set your presence status to Available. Step 2: Go to the “Meetings” tab and click on the “Meet Now.

We're using an on-premises Skype for Business environment, when Windows or Mac clients try to send a message to a Skype for Business Mac client, the sender usually receives 'We couldn't send this message' while the message is delivered. For the best Mac client experiences and an always up-to-date infrastructure, we recommend all customers migrate to Office 365. Skype for Business Server 2015 customers should at a minimum download and install the Skype for Business Server 2015 Cumulative Update version 9319.272 or higher. Start instant message conversations and voice or video calls. See when your contacts are available online. Schedule and join meetings. Present your screen during meetings. If you're using Skype for Business on a PC, see the Skype for Business on Windows Quick Start.

Problem

Assume that in an Office 365 environment, you try to send or receive files or attachments in Lync through Skype for Business Online (formerly Lync Online). In this situation, you may experience the following issues:

• You can't send files to contacts.
• You can't receive files from contacts.
• You can't upload file attachments in Skype for Business Online meetings.
• When you send files to contacts, you receive an error message.
• You can't send pictures directly in an Instant Messaging (IM) conversation.

Skype For Business We Couldn 27t Send This Message Macos

Solution

For Skype for Business Online users

Skype For Business We Couldn 27t Send This Message Machine

If you receive an error message when you send or receive files, make sure that the file type being transferred isn't one of those that is listed in the 'More Information' section.

For Skype for Business Online administrators

If a user doesn't see the option to transfer files, verify that file transfer capabilities are enabled for that user.

Firewalled networks must meet the network requirements for Skype for Business Online. For more information about Skype for Business Online network requirements, go to the following Microsoft Knowledge Base article:

2409256 You can't connect to Skype for Business Online, or certain features don't work, because an on-premises firewall blocks the connection

More Information

Generally, if the menu option to send a file isn't available, this means that the administrator has disabled file transfer capabilities for that user.

If your attempts to upload attachments to a conference or to send files to a contact generate an error message, this means either that the contact that you're sending the attachment to doesn't have permission to receive files or that the file type is blocked.

In Skype for Business Online, certain files types are blocked by the Intelligent Instant Message Filter (IIMF) application. IIMF helps protect Skype for Business Online users against the most common forms of viruses without degrading the user experience.

Transferring files to Skype contacts isn't supported.

By default, Skype for Business Online is configured to prevent users from sending files through IM that have the following file name extensions:

ade, adp, app, asp, bas, bat, cer, chm, cmd, com, cpl, crt, csh, exe, fxp, grp, hlp, hta, inf, ins, isp, its, js, jse, ksh, lnk, mad, maf, mag, mam, maq, mar, mas, mat, mau, mav, maw, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ocx, ops, pcd, pif, pl, pnp, prf, prg, pst, reg, scf, scr, sct, shb, shs, tmp, url, vb, vbe, vbs, vsd, vsmacros, vss, vst, vsw, ws, wsc, wsf, wsh

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Still need help? Go to Microsoft Community.