[PLUG] SMTP Error Code Meaning
Rich Shepard
rshepard at appl-ecosys.com
Fri Dec 11 16:26:17 UTC 2015
Some e-mail messages bounce with the code 554 5.7.1 <username at domain.tle>:
Recipient address rejected: 300
I've recently successfully sent messages to these recipients and suspect
this error is due to some issue at the domains' mail servers.
A web search turns up a couple of examples of Recipient address rejected,
but with text and not with '300.'
Where can I find an explanation of this particular error message?
TIA,
Rich
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