User guide

Part 1 – AT Commands for All Universal IP Devices Chapter 2 – SMTP Commands
Universal IP AT Commands Reference Guide (Document S000457H) 28
#SMTPUN – Set SMTP User Name
Definition: To send email messages, some SMTP servers use an authentication process. In these cases,
the TCP/IP stack software will provide the SMTP user name (associated with a SMTP password)
for the email sending process.
If this parameter is an empty string, the authentication mode is inactive. If both this parameter and
the SMTPPW parameter are not empty, the authentication mode is active.
Syntax: Set Value: AT#SMTPUN="<value>"
View Value: AT#SMTPUN? or AT#VSMTP, AT#VALL
Values: Alphanumeric ASCII text string up to 64 characters. No default.
#SENDMAILi – Send Mail without Interactive Mode
Important Note: MT5692SMI-IP supports only SENDMAIL1 options.
Definition: This command sends one of the 3 pre-defined email combinations. Once an IP link is established,
the attached host can direct the TCP/IP stack to send an email message at any time (except
when the TCP/IP stack software is already in a process using TCP resources).
The header of this email is built using the REC1/2/3, CCREC1/2/3 and SUBJ1/2/3 parameters
while the body is filled in the BODY1/2/3 parameter.
This command is similar to a “send email” operation issued by a standard messaging client on a
PC.
Syntax: AT#SENDMAILi
Example: Note: In #SENDMAILi, the i is to be replaced with #SENDMAIL1, #SENDMAIL2, or
#SENDMAIL3.
Command Possible Responses
AT#SENDMAIL1
Note: Send predefined
mail #1
OK
Note: Mail 1 has been successfully sent
AT#SENDMAIL2
Note: Send predefined
mail #2
OK
Note: Mail 2 has been successfully sent
AT#SENDMAIL3
Note: Send predefined
mail #3
OK
Note: Mail 3 has been successfully sent
AT#SENDMAIL2 #CME ERROR: 38027
Notes: The address of the SMTP server has not been resolved by
the secondary DNS server.
TCP/IP stack is not able to reach the primary or secondary
DNS servers or a wrong SMTP server address has been
entered.
AT#SENDMAIL1 #CME ERROR: <value>
Notes: An error has occurred during the communication with the
remote SMTP server. It may also happen during the data
transfer (after the OK message).
This error can be due to one of the following reasons:
- The DNS servers are not able to resolve the SMTP server
address
- The SMTP server is temporarily out of service
- The authentication (SMTPUN, SMTPPW) is not valid
- Email address specified in REC1 or CCREC1 is not valid
See section ‘Response messages and error codes’.
To view parameters, use #VMAIL and #VSMTP. They are also listed in #VMAILi (where i = 1, 2, or 3)