Upon attaching a file or multiple files that will make you go over the message size limit, you’ll get an error and Outlook will not allow you to add the attachment(s). Outlook 2010 and later have a built-in warning system for attachments that are too big to be sent. Outlook 2010’s, Outlook 2013’s and Outlook 2016’s attachment limit When you try to send a message that is too large for your mail server, you could also get a NDR back but the message could also get stuck in the Outbox and you’ll start getting Send/Receive Errors.įor Outlook 2007 and previous, you can prevent yourself from sending messages with attachments that are too large by using this this workaround. The text within this message will tell you more about why it bounced. This message is also known as a Non Delivery Report or NDR. When the message is too big for the recipient, you usually get a bounce message in return. Outlook 2007 and previousīasically any error or notification that you are getting in Outlook 2007 and previous about the message file size is either coming from the mail server you are using or the mail server of the recipient of the message.
Outlook might not actually be checking with the server for the limit at all. However, when you are using Outlook with a POP3 or IMAP account, Outlook could also nag about exceeding the allowable limit set by the server, even though you didn’t.īy setting a Registry value, you configure when Outlook starts reminding you about the total message size or disable the nag screen completely. The attachment size limit, or actually message size limit as it includes all your attachments and the message itself, is determined by the sending size limit configuration of the mail server that you are using. How can I increase the attachment size limit? In Outlook 2010 and later, there is another way to do this and that is by changing a Registry key.When I try to send a message with some attachments, I get the warning that my message is too big to be sent. Note: 1MB (megabyte) is 1024KB (kilobyte), so in our example 20MB is 20480 kilobyte Setting the attachment size limit in Outlook 2010, Outlook 2013 and Outlook 2016
Apply this rule after I send the message.Press Next, then Next again and then on Finish to complete creating the rule.Click OK to close the Deferred Delivery dialog.In the section at the bottom, click on: a number of.Select: defer delivery by a number of minutes.Press OK to close the Message Size dialog.
In the section at the bottom, click on: in a specific range.Select: with a size in a specific range.Press the New Rule... button and start with a blank rule:.Outlook 2010, Outlook 2013 and Outlook 2016įile-> section: Info-> button: Manage Rules & Alerts.
To create a rule to automatically prevent larger email from sending follow the instructions below. This will allow you enough time to cancel the message. You can create a rule that checks if the message is larger than 20480KB and if it is to postpone the message by 120 minutes. Is there any way I can work around this so that I don't get any Send/Receive errors and have to pry them out of the Outbox? I know my ISP has a limit of 20MB but I sometimes get too excited with adding large pictures or other stuff. Sometimes I add attachments which are too large to send and the message will hang in my Outbox.