In SMTP, must the RCPT TO: and TO: match? - Stack Overflow
15 Does this RCPT TO list of recipients have to match with the headers indicated in DATA command? Nope. if the recipient is not indicated in RCPT TO, but in the To field of email …
email - smtp, hidden 'rcpt to' value - Stack Overflow
Jun 30, 2014 · The contents of an email message, specifically, the to, cc and from headers, don't necessarily correspond to the envelope mail from and rcpt to of the message. The SMTP …
Why do I get RENEGOTIATING when sending RCPT TO to my …
However, the Fargate service works fine for all SMTP commands on NLB/Fargate except any command that starts with the character R e.g. RCPT TO:. I get RENEGOTIATING followed by …
How to sent email in Oracle PL/SQL package to multiple receivers?
8 You need to call utl_smtp.rcpt multiple times, once for each recipient; you can't give a list of values in one call. From the UTL_SMTP.RCPT documentation: To send a message to multiple …
SMTP -> ERROR: RCPT not accepted from server - Stack Overflow
SMTP -> ERROR: RCPT not accepted from server: 550 SMTP AUTH is required for message submission on port 587 SMTP -> ERROR: DATA command not accepted from server: SMTP …
python 3 smtplib sendmail/send_message (mail_options= [], …
Apr 19, 2016 · The docs specify that you can include mail_options=[], rcpt_options=[] as parameters for sendmail or send_message. I have not been able to find anywhere exactly …
email - Sending mail with SMTP to multiple addresses: relaying the ...
Sep 1, 2010 · The envelope (RFC822 and further) are just the outside bounds. The fun happens within the ESMTP protocol. In terms of plain SMTP, each recipient (RCPT TO) fires up a new …
smtp auth - Email error 503, how to solve? - Stack Overflow
Dec 8, 2009 · RCPT RCPT TO: 503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your …
Net::SMTPSyntaxError: 501 Invalid RCPT TO address provided
Sep 2, 2015 · Net::SMTPSyntaxError: 501 Invalid RCPT TO address provided Asked 10 years, 3 months ago Modified 3 years, 8 months ago Viewed 16k times
Relay access denied on sending mail, Other domain outside of …
May 27, 2017 · If it is giving you relay access denied when you are trying to send an email from outside your network to a domain that your server is not authoritative for then it means your …