
Chapter 2 – SMTP AT Commands
20 Universal IP AT Commands Reference Guide
Use these AT commands with any Universal IP device.
Set Commands
#SENDERNAME – Set Sender Name
Description: The sender’s literal name (different from the SENDERADDR parameter, which is the sender’s
email address). This parameter will appear in the header of the email sent by the TCP/IP stack
software, in the field: “From:”
Syntax: AT#SENDERNAME="<value>"
AT#SENDERNAME? Read or display current value (also AT#VSMTP or AT#VALL).
Values: Alphanumeric ASCII text string up to 120 characters. The address must be provided in literal
format (for instance, “machine 245”).
Default: No default.
#SENDERADDR – Set Sender Address
Description: To send emails, the TCP/IP stack software must know the email address of the sender. The
“sender” is the email identification of the hardware platform itself or the optional attached
equipment. This email address will appear in the header of the email sent by the TCP/IP stack
software, in the field “From:”
Syntax: AT#SENDERADDR="<value>"
AT#SENDERADDR? Read or display current value (also AT#VSMTP or AT#VALL).
Values: Alphanumeric ASCII text string up to 60 characters. The address must be provided in literal
#CCRECi – Set Additional Recipient CC
Description: The software can send email messages to an additional recipient as a "carbon copy". This
parameter contains the email address of the additional recipient. This email address will appear
in the header of the email sent by the TCP/IP stack software in the field “Cc:”
For a given value n, the CCRECn parameter is directly associated with the RECn parameter.
Syntax: AT#CCRECi="<value>"
AT#CCRECi? (replace i with 1, 2, or 3) or AT#VMAILi, AT#VALL
Values: CCRECi (i = 1, 2, or 3)
Alphanumeric ASCII text string up to 120 characters. The address must be provided in literal
Default: No default.
#DOMAIN – Set Domain Name of the Sender
Description: When sending an email message, the TCP/IP stack software must provide the SMTP server with
the domain name of the sender. In some cases, this domain name may be different from the
domain name included in the sender's email address.
Syntax: AT#DOMAIN="<value>"
AT#DOMAIN? Read or display current value (also AT#VSMTP or AT#VALL).
Values: Alphanumeric ASCII text string up to 120 characters.
Default: No default.
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