Email size limitation

The email size limitation varies depending on the email service provider, email client, and the type of email being sent. Here are some general guidelines:

Email Service Providers (ESPs):

  1. Gmail: 25 MB (25,000,000 bytes)
  2. Yahoo Mail: 25 MB (25,000,000 bytes)
  3. Outlook.com: 20 MB (20,000,000 bytes)
  4. AOL Mail: 25 MB (25,000,000 bytes)
  5. iCloud Mail: 20 MB (20,000,000 bytes)

Email Clients:

  1. Microsoft Outlook: 20 MB (20,000,000 bytes)
  2. Mozilla Thunderbird: 10 MB (10,000,000 bytes)
  3. Apple Mail: 10 MB (10,000,000 bytes)

General Guidelines:

  1. Most email providers and clients have a maximum attachment size limit of 10-20 MB.
  2. If you need to send larger files, consider using file-sharing services like Dropbox, Google Drive, or WeTransfer.
  3. Be mindful of the total email size, including the message body, attachments, and headers, as this can also affect deliverability.

Best Practices:

  1. Keep email attachments small and relevant to the message.
  2. Use file compression tools like ZIP or RAR to reduce attachment sizes.
  3. Consider using cloud storage services to share large files.
  4. Use plain text or HTML formatting instead of rich text or images to reduce email size.
  5. Avoid sending large files or attachments to multiple recipients at once.

Remember, email size limitations can vary, and it's essential to check with your email service provider or client for specific limits and guidelines.