KNOWNHOST KNOWLEDGE BASE

Hosting Question? Find the Solution - Browse our Guides, Articles, and How-To's

SMTP Error 501

Category: Other
Tags: # # #

Description: Syntax error in parameters or arguments. What does this mean? This is similar to SMTP Error #500, although this is specific to the additional ‘parameters’ or options that are being used. How to fix SMTP Error 501? This is most commonly an issued with an incorrect/invalid email address, however can also be due to […]