I'm wondering if this is the Rich Text vs HTML format snafu. Have any of your users tried to test the forwarding of the email and attachments (although unseen) to see if the attachments actually DO forward? I'd also check to see what the default Format Text is for your forwarded emails. If it is Rich Text, there is a good possibility that the attachment is just 'invisible' for whatever reason Microsoft does that. Change the format to HTML and see if the the attachments appear in the email. If they do, then you may want to set the default format to HTML for forwarded emails to avoid the confusion. Here's to hoping that's all this is.
Edited Jan 11, 2018 at 23:01 UTCI've got a problem with attachments when sending e-mails further. Sender A is sending me an e-mail with.pdf attachement, e-mail is delivered to me without any problems. I then want to send it further to my co-worker, he gets an e-mail without attachment. It is only one sender we've got problem with. The problem: Some email recipients on Mac OS X using Apple Mail and Gmail receive winmail.dat attachments in place of correctly-encoded MIME attachments from users running Outlook 2016/Windows 10/Office 365 hosted mail. They can’t open the faulty attachments and (in our case) the result is grumpy clients.
-->These known issues provide information about non-security updates that are included in Monthly Channel, Semi-Annual Channel (Targeted), and Semi-Annual Channel updates in 2019 for Microsoft 365 Apps for enterprise, Microsoft 365 Apps for business, and the subscription versions of the desktop apps for Project and Visio.
Outlook 365 Attachment Issues
Note
- This list is not comprehensive.
- If you are experiencing an issue in a channel other than the channel shown as resolved, you can expect resolution soon. Learn more
- Resolved issues are documented in their respective channel pages as well.
Last Updated November 12, 2019
Excel
- Check box controls could shrink when using autofit to adjust row height
Investigating: Monthly, SACT - Performance issue with Asynchronous User-Defined Functions that was causing them to be run Synchronously.
Resolved: SACT Version 1908 (11929.20436) - Users could be prevented from saving in Office 365 Excel Workbook format
Resolved: SACT Version 1908 (11929.20436) - Issue with slow performance on clicking on the Font Color button when a file has extensive conditional formatting.
Resolved: SACT Version 1908 (11929.20436) - Significant improvements to the performance of deleting columns with merged cells
Investigating: SACT
Resolved: Monthly Version 1910 (12130.20272) - Incorrect results when converting report filters along with the rest of the PivotTable for queries to SQL tabular servers.
Investigating: Monthly - Fix to correct colors used in previews when inserting charts using chart templates
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) - Identified an issue in inserting files as object from OneDrive.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue where workbooks created in earlier versions of Office could cause Excel to hang when opened in current versions of Office.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436), SAC Version 1902 (11328.20468) - Identified an issue that was causing delays in displaying typed values after deleting a range.
Resolved: SAC Version 1902 (11328.20468) - Identified an issue where selecting a cell after scrolling could result in the wrong cell being selected.
Investigating: SACT
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue which could have caused scatter line charts from rendering properly when changing the series collection.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20300)
Outlook
- Identified an issue that caused some users to see duplicate special folders created when adding a secondary Exchange account.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) - Identified an issue which could have resulted in a memory leak.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20388), SAC Version 1902 (11328.20468) - Addresses an issue that caused some users to see duplicate special folders created when adding a secondary Exchange account.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) Mac os x snow leopard for vista. - Identified an issue which could sometimes result in a crash when a user receives a 'Missed Conversation' message from Skype.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue that caused Users to receive a generic 'operation failed' error when opening an attachment on a machine where DisableBGSave is enabled.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue with the links of cid: images (Outlook email-based images) were not able to be broken.
Resolved: SACT Version 1908 (11929.20436) Fl studio sakura crack download. - Identified an issue which could have caused an incorrect error message when attempting to send s/MIME encrypted e-mail.
Resolved: Monthly Version 1910 (12130.20272)
PowerPoint
- Some katakana characters may display incorrectly in a vertical text box.
Investigating: Monthly Vray for mac. - Identified an issue which prevented hyperlink from being created when pasting text with hyperlink.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue which could cause TextRanges to become broken after pasting text into the header/footer/slide number placeholders on slide master and slide layout.
Resolved: Monthly Version 1910 (12130.20272) - Identified a perf issue on Win7 where the insert shapes gallery from the ribbon in all apps took approximately 4 seconds to appear.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20396), SAC Version 1902 (11328.20468)
Project
- An assignment with zero work on a task, the task may be unable to be marked complete and will always show up at 99%.
Investigating: Monthly
Resolved: SACT Version 1908 (11929.20436) - Overallocations are not resolved by leveling
Investigating: Monthly - Identified an issue where users could get several messages when opening a read-only project.
Resolved: Monthly Version 1910 (12130.20344), SACT Version 1908 (11929.20436)
Word
- Searching from the Navigation pane may fail
Investigating: Monthly - Identified an issue in inserting files as object from OneDrive.
Resolved: Monthly Version 1910 (12130.20272)
Office 365 Outlook Attachment Problems 2016
Office Suite
- Attempting to save a file to a disconnected network share may result in issuesInvestigating: Monthly
Office 365 Outlook Attachment Problems Today
Office 365
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Office 365 Outlook Attachment Problems 2017
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