Smtp Delivery Not Allowed In Reply To Rcpt To Command

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SMTP errors and reply codes - smtp mail server ...

    https://serversmtp.com/smtp-error/
    46 rows · Another syntax error, not in the command but in its parameters or arguments. In the majority of the times it’s due to an invalid email address, but it can also be associated with connection problems (and again, an issue concerning your antivirus settings). 502. The command is not implemented. The command has not been activated yet on your own ...

550 Delivery is not allowed to this address - hMailServer ...

    https://www.hmailserver.com/forum/viewtopic.php?t=3027
    Jul 22, 2008 · The tutorial is found under the documentation page Installation->Quick start guide->Configuration tutorial..I guess you didn't look very long. What do you mean with "It is the SMTP conversion method"? The syntax for the MAIL FROM command is MAIL FROM:<reverse-path>.There should not be a space there.

RCPT TO - Microsoft Community

    https://answers.microsoft.com/en-us/windowslive/forum/livemail-email/rcpt-to/2b6ae8d1-03ca-4ee6-beb0-53ed87e73765
    Apr 27, 2014 · 542 Rejected. (in reply to RCPT TO command) 550 Requested action not taken: mailbox unavailable (in reply to RCPT TO command) When we sent out our emails, we had twenty or so returned with one or the other of these codes.

email server - smtp error "550 Delivery not allowed to ...

    https://serverfault.com/questions/837329/smtp-error-550-delivery-not-allowed-to
    Hire good admin andor programmer, which will be able to see and to implement obvious for any real hostmaster thing - correct and RFC-compliant SMTP-session (consult with RFC 2821 or even with ol' good RFC 821, Chapter 3, "Example of the SMTP Procedure"). Now it's terribly bad. Quote from "Example of the SMTP Procedure"

SMTP Commands Reference (covers HELO/EHLO, MAIL, RCPT ...

    https://www.samlogic.net/articles/smtp-commands-reference.htm
    SMTP Commands Reference A client computer communicates with an SMTP server (e-mail server) by using SMTP commands. There is a core list of SMTP commands that all SMTP servers supports and these are referred to as basic SMTP commands in this document. All basic SMTP commands that are specified by the SMTP protocol are described below.

Use Telnet to test SMTP communication on Exchange servers ...

    https://docs.microsoft.com/en-us/Exchange/mail-flow/test-smtp-with-telnet
    In return, the server will reply with responses that would be returned in a typical connection. These results can sometimes help you to figure out why you can't send or receive messages. You can use Telnet to test SMTP communication to: Test mail flow from the Internet into your Exchange organization.

RCPT TO command—Specify the recipients of the mail

    https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.halu001/smtrcto.htm
    You can use the RCPT TO command only after a MAIL FROM command has been issued. If the host system has never heard of the recipient host, the RCPT TO command receives a negative reply. If a name server is used for domain name resolution, MX records are used to resolve the recipient IP address before trying A records.

5 causes for "SMTP error from remote mail server after ...

    https://bobcares.com/blog/smtp-error-from-remote-mail-server-after-rcpt-to/
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