Common Error: The attachment size exceeds the allowable limit or The file you’re attaching is bigger that the server allows – Or the email simply will not be sent or received.

One way to mitigate this problem is to upload attachments on cloud drives and send the link to the recipient through email. Most cloud servers allow uploading files up to 5-15 GB in size free of cost, so it must not be an issue.

Attachment Size Limits for common service providers

The maximum Attachments size limits & Size for uploading files for Outlook, Hotmail, OneDrive, Gmail, Google Drive, Yahoo, Dropbox, Facebook, Twitter, WhatsApp have been listed here.

Attachment Size Limits

Outlook: Speaking of the Outlook desktop client (not the email server), the maximum permitted attachment size is 20 MB. This is irrespective of the email server being used. If an email server allows its users to send attachments of larger sizes, they could be sent through their web application but not through the Outlook desktop or mobile client.

In case you are using an Exchange server, the limits might vary. The attachment size limit for sending files through the Outlook client can be modified, but the upper limit for sending the file cannot be more than that permitted by the email server.

Read: Fix The attachment size exceeds the allowable limit message on Outlook.

Hotmail: Hotmail allows sending files up to a maximum size of 10 MB which is quite less. After this, the user can upload attachments to OneDrive and send the link.

OneDrive: It permits free storage of up to 5 GB and paid storage of up to 50 GB. One positive with OneDrive is the support it gets from Microsoft and the integrated Microsoft Office Online on its cloud drive.

Office 365: Office 365 now supports email messages up to 150 MB.

Gmail: The maximum permitted attachment size for Gmail is 25 MB. The cloud drive web application compatible with Gmail is Google Drive.

Google Drive:  It allows storing up to 15 GB of data for free.  The paid plans could help you buy storage of up to 10 TB.

Yahoo: Yahoo permits attachments up to a size of 25 MB as well. After that, one could use Dropbox links compatible with Yahoo Mail to send attachments larger in size.

Dropbox: It provides free storage up to 5 GB, and the rest of the plans can be purchased.

Twitter: GIF, JPEG, and PNG Photos can be up to 5MB; animated GIFs can be up to 5MB on mobile, and up to 15MB on web. Video File size should not exceed 15 MB (sync) or 512 MB (async).

Facebook: When sending files through Facebook messages, the maximum limit is 25 MB. Any cloud drive link can be shared through Facebook messages, but the user has to be logged on to the cloud drive’s account separately.

For uploading videos on timelines, the maximum limit per file is 1.75 GB and 45 minutes of running time. But a restriction is as follows: A user can upload a file of unlimited bit-rate as far as the size of the file is 1 GB or less. When the size exceeds 1 GB, the bit-rate of the video must be limited to 8 MBPS for a 1080 HD file and 4 MBPS for a 720 HD file.

WhatsApp: The attachment size limit for sending files is 16 MB, and it could be increased to 30 MB. This is quite less and it becomes very difficult to share uncompressed videos. One can share cloud drive links, but the links open in the browser and thus the user has to be logged on accordingly.

Whenever sending large files through cloud drives, the receiver needs to be logged in from an account of the same cloud drive brand. Eg. If a user using a Hotmail account sends a OneDrive link to a Gmail user, the recipient may not be able to access the link – depending on your setting.

From time to time, the email service providers or social networking sites may change the size limits, so please do check with your service provider.

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