Solving problems with sending email from scripts in Sendmail

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Customizing a sendmail email client (Solving problems with email from scripts)

Sometimes a Sendmail server fails to send email and returns the error:

Feb 28 22:04:24 myhost sendmail[5806]: mATM4O8w58065806: Losing ./qfmATM4O8w58065806: savemail panic
Feb 28 22:04:24 myhost sendmail[5806]: mATM4O8w58065806: SYSERR(www): savemail: cannot save rejected email anywhere

The logs may contain the following error as well:

stat=Data format error

This may happen due to invalid server hostname or e-mail address.

To resolve the problem go to ISPmanager-> the WWW domains module - > "Create new administrator" to provide a valid e-mail address in the "E-mail administrator" field.

When specifying the address in the Apache configuration file in the virtual host's description:

 php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f webmaster@example.com"

If you are using PHP as CGI or as FastCGI, you need to specify the record in the ~/php-bin/php.ini file

sendmail_path = "/usr/sbin/sendmail -t -i -f webmaster@example.com"

Disabling verification of a sender's address when sending an email

Sendmail runs from Message Submission Program by default (MSP). This is a standalone process for an email queue processing.

Consider the example on FreeBSD

In the /etc/make.conf file add the line that disables automatic creation of the submit.cf file

SENDMAIL_SET_USER_ID=yes

Delete the submit.cf file, edit access privileges for the sendmail file (change SGID into SUID bit, i.e. set privileges 4755 instead of 2755) and restart sendmail

cd /etc/mail
rm submit.cf
make stop
chmod 4755 /usr/local/sbin/sendmail
make start

Follow this procedure to disable verification on other systems. For example, on CentOS Linux you need to disable automatic creation of submit.cf by editing the /etc/mail/Makefile file.