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Quickly increase or change maximum attachment size limit in Outlook

In Outlook, when you adding an attachment exceeding 20 MB - the default maximum attachment size limit - Outlook will warn you with information as below screenshot shown in Outlook 2013 or later versions. Kutools for Outlook’s Maximum Attachment Size option can quickly increase or change the maximum attachment size limit as you want.
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Change maximum attachment size to unlimited

Increase maximum attachment size as you need

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arrow blue right bubble Change maximum attachment size to unlimited

With Kutools for Outlook’s Maximum Attachment Size option, you can set the maximum attachment size to no limited.

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1. Enable Outlook, and click Kutools Plus > Options. See screenshot:

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2. Then in popping Options dialog, under Others tab, type 0 into the textbox next to Maximum Attachment Size. See screenshot:

3. Click OK, a Kutools for Outlook dialog reminds you to restart Outlook program for the new setting. See screenshot:

4. Click OK to close the dialog, and restart Outlook. Now you can add attachments without any size limited in massages.

Note: If you want to change the maximum attachment size to default setting, just type 1 into the textbox next to Maximum Attachment Size.


arrow blue right bubble Increase maximum attachment size as you need

If you just want to increase the limited maximum attachment size while inserting attachments in messages, you can do as these steps:

1. Enable Outlook, click Kutools Plus > Options. See screenshot:

2. And under Others tab of the popped out dialog, type the new maximum attachment size you want into the textbox beside Maximum Attachment Size section. For instance, here I increase the maximum attachment size to 30 MB by typing 30720 into the textbox. See screenshot:

Tip: Here the unit of the attachment size is KB, if you want to change the maximum attachment size to X MB, you just need to type the number = X * 1024.

3. Click OK, and a dialog pops out to remind you to restart Outlook, just click OK to close it. And then restart Outlook program.

After Outlook restarting, the new maximum attachment size limit has been changed to 30 MB.

Note: If you want to change the maximum attachment size to default setting, just type 1 into the textbox of Maximum Attachment Size.


Kutools for Outlook - Brings 100 Advanced Features to Outlook, and Make Work Much Easier!

  • Auto CC/BCC by rules when sending email; Auto Forward Multiple Emails by custom; Auto Reply without exchange server, and more automatic features...
  • BCC Warning - show message when you try to reply all if your mail address is in the BCC list; Remind When Missing Attachments, and more remind features...
  • Reply (All) With All Attachments in the mail conversation; Reply Many Emails in seconds; Auto Add Greeting when reply; Add Date into subject...
  • Attachment Tools: Manage All Attachments in All Mails, Auto Detach, Compress All, Rename All, Save All... Quick Report, Count Selected Mails...
  • Powerful Junk Emails by custom; Remove Duplicate Mails and Contacts... Enable you to do smarter, faster and better in Outlook.
shot kutools outlook kutools tab 1180x121
shot kutools outlook kutools plus tab 1180x121
 
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