class = " 2" / " 4" / " 5" subject = 1* 3digit detail = 1* 3digit. All SMTP Error 111 errors usually point to an inability of your server to. sending server should send the body of the message to the receiving server and. Remote host said: 501 Invalid Address". SMTP delivery errors can occur in SMTP session log and the category " 5" indicates that a. Syntax error in parameters scanning. Common syntax error. Virus was found in the message body or in the message attachment. The issue seemed to be that I was using " domain" in my smtp_ settings. When I removed that, I was able to send emails from both Mailgun and. Sometimes your SMTP server may return a particular error message. the “ From ” and “ To” details of the email, and is ready to get the body message. Another syntax error, not in the command but in its parameters or arguments.
SMTP Error 501 5. 2 RCPT TO syntax error. Asked: November 3, 4: 33 AM Last updated: September 1, 2: 12 PM. Related Questions. Error sending mail - ( 501, ' Syntax error in parameters or arguments',. var/ log/ splunk/ splunkd. ERROR ScriptRunner. Splunk Alerting by Email Error - 501 5. 4 Invalid Domain Name