![The Complete SMTP Error Codes List: Understanding Why That Error Happened & How to Fix It 101](https://smtpedia.com/wp-content/uploads/thumbs_dir/smtp-error-codes-pyknxyjxojd3nq97ms1cub5mw1fixsxfa513h4fstc.webp)
Introduction: What is an SMTP Error?SMTP is an acronym for Simple Mail Transfer Protocol. It is a protocol for sending email messages between servers. SMTP error codes generally mean that there was a problem with the SMTP server or the mail client.The following table shows the complete ...
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