• February ix, 2022
  • How to Fix
Check to see if yous're sending such a file that Outlook considers unsafe. If so then, make sure to attach information technology as a compressed or zipped folder for sending without inconvenience.
See if you're using the Rich Text Format of files. If yes so, switch it to HTML or Plaintext format to hands ship files from Outlook email.

We all know that Outlook is 'ace electronic mail software' of Microsoft and is also a part of Microsoft Function Suite. It is also bachelor for almost every Operating organization whether it is Windows, Mac, Linux, Android or any other.

But, sometimes users complain that "Outlook won't allow me attach files from my reckoner" or that "I am unable to attach files in the Outlook app." Then, let us directly ask y'all this—

Are you too facing a similar problem where you desire to transport a very important Outlook email message with attachments just are unable to open or ship it? If yes, then in that location's no demand to worry equally you're luckily reading the right post.

Here, nosotros have discussed in detail all the possible solutions to solve this problem.

And so, without wasting whatever second farther, let'due south get started—

Why Can't Users Attach Files in Outlook?

Users, who are continued to a mailbox past either using Outlook on the spider web (formally known as Outlook Spider web App or OWA) or its desktop version, usually receive can't add an zipper to an email bulletin or 1 of the following mistake messages:

"The following files couldn't be fastened: Filename. Please try again later."

"The following files weren't fastened considering adding them would cause the bulletin to exceed the maximum size limit of x MB: filename."

Then, it is quite articulate from these messages that the discussed error occurs because the attachment exceeds the message size limit as the default maximum bulletin size for an attachment is ten megabytes (MB).

At present that you know why yous're unable to attach files in Outlook email, information technology'due south fourth dimension to utilize the below-mentioned solutions to become rid of the error encountered—

Try These 4 Main Solutions Commencement

[Note: No matter whether you are working in an app, or the desktop version, you lot tin can try the solutions given below to easily solve the 'Cannot attach files in Outlook' issue.]

Solution i: Check File Size and Increment Attachment Limit

As, about all the email service providers come with a limitation of word count and an upper cap of file size of the attachment so; it is needless to say that fifty-fifty e-mail service provider giants like Gmail and Outlook also have this upper cap of file attachment size.

Talking about Outlook, let usa tell you that it sets a maximum limit of 20 MB for each email attachment, including email content. Therefore, it is ever preferred to cheque the size of the file you desire to send earlier attaching or uploading the same.

And then, if you see that the size of the file exceeds the limit of the size immune by the Outlook then, you must modify the same from the "Default zipper size limit" pick of the Outlook.

Solution ii: Compress the Zipper File Size of Suspicious Extensions

Along with file size, sometimes the format of extension of the file becomes an issue. Every email service provider has some detail format to share that means yous cannot share whatever file type to anyone. This is for the sake of your security as diverse sorts of malicious contents may impairment the receiver's system.

Notwithstanding, if you lot are trying to share a legitimate file and Outlook is however blocking you from sending that file for considering information technology contains some kind of malicious content that can impairment the receiver's organization; you tin can try Zipping the file and so attaching it to send easily.

[Additional Info: Some types of file that are blocked by Outlook include .adp, .ade, .app, .bat, .com, .jar, .inf, and .ops. If you want, you tin also check the total list here.]

To exercise so—

  • Stride ane: Navigate first of all to the location where the file you want to attach is located.
  • Footstep 2: And then, right-click on that file to choose 'Send to compressed (zipped) folder' from the contextual menu that appears to compress the original file and alter its extension to .zip format.
  • Stride three: After that, head dorsum into Outlook and just attach that compressed null file to send information technology to anyone through Outlook.

[Alternating Tip: In case, you're unable to nil, or if Outlook still notifies that the file type is likewise big so, yous tin can first upload the file to the cloud, and and then try sharing the link instead.]

Solution three: Change Rich Text File Format to HTML or Plaintext

If you're still encountering the discussed issue then, check whether you're replying to or using the Rich Text format for your email. If aye, consider switching the format of all outbound emails back to HTML or Plaintext. For that, here's what yous demand to practise—

  • Step i: Open Outlook and head to the 'File' tab.
  • Pace 2: Then, choose 'Options.'
Navigate to File and click on Options.
  • Stride 3: Following that, click on 'Mail.'
  • Step 4: Side by side, under 'Compose Messages,' y'all've to look for the 'Compose messages' in this format option.
  • Step 4: Now, simply choose 'HTML or Patently Text' option to supervene upon the Rich Text format file.
Choose Options then, click on Mail to choose HTML or Plain Text option under the Compose Messages section.

Solution 4: Change Sharing Preferences

Next, if your file size and format is valid and notwithstanding cannot adhere files in Outlook then, you tin definitely work your manner out by changing the sharing preference. It has been observed that this has many times resolved the 'Cannot attach files in Outlook' issue successfully.

And, guess what! It is quite easy to change the sharing preference using Outlook.com to ship an email. Have a look—

[Note: Sometimes users complain that they are unable to attach files in the Windows app Microsoft Outlook 365 then likewise, this solution might help.]

  • Stride i: Firstly, go to the 'Settings' console.
  • Step 2: And then, go to the 'Mail' option in the card.
  • Step 3: Following that, choose the 'Attachment' option. Here is where you can alter sharing preference.
  • Footstep 4: With default settings, sharing preference is set to "Ask me how I want to share them every time." Only, you now need to alter this. For that, set it to either "Always share them as OneDrive links" or to "Always share them as copies."
  • Pace 5: Once you've done that, just 'Salvage' the made changes of sharing preference.
Go to the 'Mail' option, choose 'Attachment' option and set it to either

By doing this, Outlook removes some restrictions from sharing preference and hopefully now, files tin be shared with anyone.

Other 5 Solutions to Fix Can't Attach Files in Outlook

If the above solutions don't assist to resolve the encountered issue, you tin can endeavour these additional solutions to see if it works in your case—

Solution five: Update & Restart Outlook

Microsoft offers updates to its software including Outlook very often to amend their performance, updates new features and removes bugs from them. And so, if the effect of non attaching the file is happening due to any bug, and so try updating Outlook to the latest version.

To update it to the latest version—

  • Step one: First of all, click on the 'File menu.'
  • Step 2: Then, cull the 'Office Account' option.
  • Step 3: After that, press the 'Update' pick button and click on the "Update Now" option for updating the software.

Now, make sure to restart the updated Outlook app too equally restarting Outlook, clean up every technical glitch it comes across in the majority of cases.

Solution half-dozen: Run Outlook in Normal Mode (Non-Compatibility Mode)

Sometimes apps do not run in the current Operating Organisation due to non-Compatibility and thus, to run such apps we use compatibility way. But, if Outlook does not perform well despite working in compatibility mode, you may face an "Performance failed" mistake while trying to adhere files to the electronic mail.

Considering this in mind, you can try to run Outlook in non-Compatibility mode using these steps—

  • Step 1: Begin by performing right-click activeness on the Outlook icon.
  • Step 2: Then, select the 'Properties' option in the contextual bill of fare that appears.
  • Pace 3: After that, go to the 'Compatibility Tab' option and simply look for 'Run this plan in compatibility mode' option.
  • Step four: Now, uncheck the above option if it is checked and then, click on 'Apply.'
  • Step 5: Upon doing and then, just 'Restart the app' and try attaching the file again.

Solution 7: Open up Outlook in Condom Mode

These days nigh IT companies including Microsoft make add-ins that assist you automate tasks. However, at times such add-ins starts interfering with the core operations of Outlook.

In that case, yous can use a new feature of Outlook known as Prophylactic Way, in which Outlook works without Add together-ins that in return, may solve the problem yous have faced.

To run Outlook in safe mode, follow these steps—

  • Step ane: Open the 'Run Control' past pressing 'Windows + R' buttons.
  • Stride 2: Then, type 'Outlook.exe/safe' in the command box (There is a infinite after Outlook and the /) and afterward that, simply printing 'Enter.'
Type 'Outlook.exe/safe' in the command box and hit Enter.

Nosotros hope that this must have solved your issue and if yes then, it was surely a trouble because of add-ons.

Solution 8: Modify or Update Browser

Though rare, outdated versions of the browser also restrict various functions because sometimes "security plugin browser extension" may block the upload procedure.

Bearing this in listen, it is e'er recommended to use the updated or latest version of the browser. So, y'all should also check if there is any update available for the browser you use. If it is available and then, make sure to update it instantly.

Now, subsequently updating your browser, you lot tin can try to transport the file again to meet if that works or not!

Solution 9: Disable Add-Ins

Last but non least, disabling all add-ins may solve the problem in the future. So, in case you've Add-ins enabled and then, hither'southward how to disable them—

  • Step i: First of all, open Outlook in normal style.
  • Footstep ii: Then, click on the 'File' menu to choose 'Options.'
  • Step three: Next, click on 'Add-Ins.'
  • Footstep 4: Afterward that, you volition come across the 'Manage' dropdown list at the bottom of the window. From this, yous just accept to select the 'Add-ins' that you lot want to disable ane by 1.
From Options window, click on Add-Ins to select the Add-ins the Manage dropdown list to disable.

Now, Restart Outlook and check if the problem has been resolved for yous.

Bottom Line

That's all! Hopefully, when you lot try to ship files with attachments this time; you will be able to practice it successfully with the aid of the above solutions discussed in this post. However, if you are using paid Microsoft 365 so, it is recommended to contact client intendance to help y'all to gear up 'Unable to attach files in Outlook Office 365.'

"Now, what if you tin can add attachments and transport files of whatsoever size, but confront the Outlook email won't transport – outcome? Well, at that place's goose egg to worry equally you read how to fix such Outlook email not working issues in this post."