Set up Sendmail as sending only server

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09-28-2010

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Set up Sendmail as sending only server

I have set up where my primary fibre optical WAN access does not have any sending SMTP service but my fall-back ADSL service does. However, with most Internet Service Providers, the SMTP service access is "locked" to the IP addresses that the service knows about. Therefore I can not send SMTP requests to my ADSL service while using the fibre optical. I have then installed Sendmail on a CentOS 5.5 64 bit so as to allow sending SMTP request no matter what service is active.

My new problem is that I can not sending SMTP requests to email address on my own domain (receiving email server not in my offices!)

How can I configure Sendmail server to be a sending SMTP server only.

smlunatick

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curlopt_service_name

CURLOPT_SERVICE_NAME(3) 				     curl_easy_setopt options					   CURLOPT_SERVICE_NAME(3)

NAME

       CURLOPT_SERVICE_NAME - authentication service name

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SERVICE_NAME, char *name);

DESCRIPTION

       Pass a char * as parameter to a string holding the name of the service for DIGEST-MD5, SPNEGO and Kerberos 5 authentication mechanisms. The
       default service names are "ftp", "HTTP", "imap", "pop" and "smtp". This option allows you to change them.

       The application does not have to keep the string around after setting this option.

DEFAULT

       See above

PROTOCOLS

       HTTP, FTP, IMAP, POP and SMTP

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.43.0 for HTTP, 7.49.0 for FTP, IMAP, POP3 and SMTP.

RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3),

libcurl 7.54.0							 December 21, 2016					   CURLOPT_SERVICE_NAME(3)

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