• Simple answer is 100MB (Text + Attachments).
• But there are other limits that could prevent you to send large message.
• If you need a quick solution, use our Webmail to send attachment up to 100MB.

• Outlook's default limit is 20MB (older version could have lower limit).
• You can follow this guide https://is.gd/uPZZcu to increase the limit, but we do not recommended changing system default settings because this can cause other problems.
• Other email clients, such as Android/iPhone/Thunderbird/Foxmail also have their own limit.

• Our email server's limit is 100MB. This cannot be changed.
• You can test send this large message size via our WebMail to a recipient is also on our mail server.

• Different company have different limits. Below are limits of some big email provider:

Gmail                   25MB
Outlook.com             20MB
Yahoo Mail              25MB
Most business           5-15MB

• Reference: https://cdn.sxl.net/25/251746818998.jpg

There are several methods.

1. Upload your file to your personal Google Drive or Microsoft OneDrive, and then share the link. (This is the recommended solution)

• How to share file on Onedrive: https://is.gd/jqFSFX or https://youtu.be/Z6qpwTI5lRI
• How to share file on Google Drive: https://is.gd/ZLyljO or https://youtu.be/ElabHPB3Urw

2. Use a public send big files for free service.

• If you are sending confidential documents via any of them. Please ZIP the file with a password first.

3. If you often need to send large files, such as product catalogues, SXL can offer a web application (for a fee) for this function.

• Mail servers only care about a message's total size (content + attachments + overheads). The actual attachment size limit is roughtly 98% of the above mentioned size.