501 5.5.4 Invalid arguments #69
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Hi, when I connect to MS Exchange on port 25 I get "501 5.5.4 Invalid arguments". Is this a known problem? When I connect to the server with telnet on port 25 and type the commands by hand everything works fine (mail from: / rcpt to: / data / ...) and the mail is delivered. From the debug: 12:26:39.637 -> Sending message header... Thanks! Martin |
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Not all SMTP servers support Delivery Status Notification (DSN) which assigned with Check your SMTP server capabilities before usage. |
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Not all SMTP servers support Delivery Status Notification (DSN) which assigned with
message.response.notify
Check your SMTP server capabilities before usage.