FastDomain Web Hosting Help
Email Attachment Size Limit
FastDomain servers have a 50 MB attachment limit for the outgoing emails sent via SMTP and webmail. However, it is recommended that your total attachment size not exceed 35 Megabytes. The reason being that there are a number of factors that can determine how large of a file attachment you may send. These factors include:
- Your email is MIME encoded, which can increase the size of the email by 40%. This means a 35 MB file is the equivalent of 50 MB of space when MIME encoded for sending as an attachment.
- Any limits your email client has on attachments.
- Any limits the recipient's server (for example, Yahoo! & Outlook.com all have a 25 MB limit. Gmail has a 50 MB limit.)
- How much free space is in the recipient's e-mail account, if their mailbox has a size limit. (If their mailbox is full, your message will be rejected.)
If you need to send larger files it is recommended that you upload the file to your account and then email a link to the file.
Email Client Limitations
- Outlook 2013
By default Outlook 2013 and later versions have an attachment size limit set to 20 MBs. Microsoft has created an article explaining how to override this limitation: "Attachment size exceeds the allowable limit" error when you add a large attachment to an email message in Outlook 2013
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