What is the attachment limit for an email?

Most email clients, including Missive, limit the size of email attachments to 25 MB or less because email providers often block larger attachments.

For example, Gmail and Microsoft 365 (previously Office 365) both have an attachment limit of 25 MB. However, an administrator of a Microsoft 365 account can increase the limit to 150 MB. It's important to verify with recipients before sending large attachments as they may not be able to receive large messages depending on their email provider or the software they are using.

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