Docs Error Library Email Delivery Errors SMTP Error 556: Message Too Large

SMTP Error 556: Message Too Large

What Is Causing This Error?

‘SMTP Error 556: Message Too Large’ typically happens when an email exceeds the size limit established by the recipient’s email server. This can occur with emails that have long conversation threads or attachments that are too large.

Resolving the Error – Solution

To fix this error, it’s important to make sure your email, including any attachments, does not surpass the size restrictions of the recipient’s email server. If the email or attachment is too big, try dividing the attachment into smaller segments, or use compression techniques to reduce their size. Adhering to the recipient server’s size limitations is essential for the email to be successfully delivered.

That’s it! Now you know how to troubleshoot and fix ‘SMTP Error 556: Message Too Large’.

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