501: Syntax Error. address too long

Severity

Recoverable error.

Explanation

SMTP was expecting an IP address, for example 4 octets long. The IP address should be a valid address in dotted-decimal notation.

System action

SMTP continues.

System programmer response

Correct the syntax to specify a valid IP address in dotted-decimal notation.

Module

SMTPARSE

Destination

DotNum

Parent topic: SMTP reply code messages