AutoRebuildAliases

Because a denial-of-service attack could occur if this option is set, it has been deprecated. Refer to the RELEASE NOTES that are part of the sendmail distribution available from ftp://ftp.sendmail.org. A user could kill the sendmail process while the aliases file is being rebuilt and leave the file in an inconsistent state.

MeToo

This option, which now defaults to True, has been deprecated. Refer to the RELEASE NOTES that are part of the sendmail distribution available from ftp://ftp.sendmail.org.