Never seen it before, but guess it is something to do with the SMTP server response.

Did you try to enable debugging in the service config file?

Debugging the scheduler service?
I have seen there is a config file, but only with POP configuration params. Nothing about SMTP.

I have also tried to activate SMTP logging from the admin web interface, but I always get and permissons error, because it is trying to create the file in c:\ and there seems to be no place to set where the smtp logging files mut be created.

In will try with another email address and another SMTP server.

Thanks

Miguel

If you are running Scheduler on Windows Server OS, temporarily grant permissions to NETWORK SERVICE account to the C drive.

If you are running Scheduler on Windows XP, temporarily grant permissions to ASPNET account to the C drive.


 

Thanks Harvey,

I have granted permissons to the correct user in Windows server and the log I get is the same as I see in the stack trace reporte before:

[11:50:09.09] [INFO] Assembly version: 4.0.2.105.
[11:50:09.09] [INFO] Will resolve host "smtp.itleap.com".
[11:50:09.09] [INFO] Host "smtp.itleap.com" resolved to IP address(es) 82.223.152.24.
[11:50:09.11] [INFO] Will connect to host "smtp.itleap.com" on port 25.
[11:50:09.55] [INFO] Socket connected to IP address 82.223.152.24 on port 25.
[11:50:09.55] [RECV] 220 mlwc635.servidoresdns.net ESMTP Postfix\r\n
[11:50:09.56] [INFO] Connected to mail service at host "smtp.itleap.com" on port 25 and ready.
[11:50:09.56] [INFO] Will send Hello command (HELO or EHLO).
[11:50:09.56] [SEND] EHLO itleap.com\r\n
[11:50:09.58] [RECV] 250-mlwc635.servidoresdns.net\r\n250-PIPELINING\r\n250-SIZE 104857600\r\n250-VRFY\r\n250-ETRN\r\n250-AUTH LOGIN PLAIN\r\n250-AUTH=LOGIN PLAIN\r\n250 8BITMIME\r\n
[11:50:09.58] [INFO] SMTP Hello completed.
[11:50:09.58] [INFO] Will login as "gemini@itleap.com".
[11:50:09.58] [INFO] Will try SASL LOGIN authentication method.
[11:50:09.59] [SEND] AUTH LOGIN\r\n
[11:50:09.59] [RECV] 334 VXNlcm5hbWU6\r\n
[11:50:09.59] [SEND] *\r\n
[11:50:09.59] [RECV] 334 UGFzc3dvcmQ6\r\n
[11:50:09.61] [SEND] *\r\n
[11:50:09.61] [RECV] 235 Authentication successful\r\n
[11:50:09.61] [INFO] Logged in as "gemini@itleap.com".
[11:50:09.61] [INFO] Will send mail message to SMTP server "smtp.itleap.com".
[11:50:09.62] [INFO] Will submit sender and recipients.
[11:50:09.62] [SEND] MAIL FROM:<\r\n">gemini@itleap.com>\r\n
[11:50:09.62] [SEND] RCPT TO:<\r\n">mromani@astro-pi.com>\r\n
[11:50:09.64] [INFO] Error: The particular item of the response data cannot be parsed. The response string: RCPT TO:<mromani@astro-pi.com>.
[11:50:09.64] [INFO] Will disconnect from host "smtp.itleap.com".
[11:50:09.64] [INFO] Disconnected from host "smtp.itleap.com".

Hi Miguel,

According to our SMTP experts:

"According to the log file posted, "RCPT TO:" command was sent to SMTP server and it was returned in exactly the same form but it should be returned with a preceding number, just like in other [RECV]-lines of the log file. Thus it seems to be caused by an improper SMTP server response.

The issue may also be caused by transparent proxy (for example, an antivirus software module) which intercept outgoing email traffic."

Maybe antivirus/firewall issue?