Postigo
Войти Попробовать бесплатно
552

Message Size Exceeded

Your email exceeds the maximum allowed size. Reduce attachments or use file sharing instead.

What does this error mean?

SMTP error 552 means your message is too large:

  • Total message size exceeds server limit
  • Attachments are too large
  • Recipient's mailbox can't handle the size
  • Server has strict size policies

Common Causes

  • attachment
    Large Attachments

    The attached files exceed the server's maximum attachment size.

  • photo_size_select_large
    Images Not Compressed

    High-resolution images are making the email too large.

  • rule
    Server Size Limit

    Different mail servers have different size limits (typically 10-25MB).

    • How to Fix

    1. Reduce Attachment Size

    Compress files using ZIP or reduce image resolution. Most servers accept up to 25MB total.

    2. Use File Sharing

    Upload large files to Google Drive, Dropbox, or OneDrive and share the link instead.

    3. Split Into Multiple Emails

    If you have multiple attachments, send them in separate emails.

    4. Convert File Formats

    Convert documents to PDF or images to JPEG for smaller file sizes.

    Example response 
    552 5.3.4 Message size exceeds fixed limit
552 Message exceeds maximum allowed size of 25MB
552 5.2.3 Message too large

    Related SMTP Errors

    452 Insufficient Storage 550 Mailbox Not Found 554 Transaction Failed 553 Invalid Mailbox Name

    Tired of SMTP errors?

    Postigo автоматически обрабатывает ошибки и ротирует SMTP-аккаунты для максимальной доставляемости.

    Попробовать бесплатно