----- Original Message ----- From: "Arno Garrels" <arno.garr...@gmx.de>
To: "ICS support mailing" <twsocket@elists.org>
Sent: Wednesday, October 28, 2009 4:02 PM
Subject: Re: [twsocket] TSmtpCli Error 451


Hello Max,

With a program sending multiple emails, one user is getting this:

MAIL FROM:<x...@btconnect.com>
< 250 <x...@btconnect.com>... Sender ok
RCPT TO:<a...@msn.com>
< 451 Too many messages
Send failed
RequestDone Rq=9 Error=451
Disconnect failed
RequestDone Rq=6 Error=451

First, am I right in assuming this is a mail server issue?

Correct.

Or could
there be something I can do with ICS other than just failing
gracefully?
The number of emails involved is actually quite modest
(here the process failed after 25 emails had been sent).


Are those messages just carbon copies or blind carbon copies?
If so, you could try to issue Data when you get the 451 error,
and send the next 25 after command Reset if the server
does not drop the connection of course.

Second,  how can I avoid the Disconnect failed error as well?

Where does it come from? Does the server disconnect the line?

--
Arno Garrels


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There are hosts who limit the amount of mails send per hour. If this is the case then splitting the bulk will not work as this will not influence the amount of emails sent per hour. I had an issue with that with my provider while mailing a newsletter. After I reached 100 I could not send any mail that hour, not even my private mail. So it's a mail server issue, but also a provider issue.

albert
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