You asked, we delivered! Auth0 has expanded our Free and Paid plans to make it even easier for you to protect your customers identities.
In our new Free Plan, you'll receive more MAUs than ever. You'll also be able to add Passwordless authentication, use your own custom domain, and more. Our expanded Paid Plans include increased connections, more MFA offerings, and more. Check out what's new.
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ASMMS -- Anonymous SMTP Mail Message Sender
... is an simple mta, written in C, for sending mails through mail
servers, which have no authentication (AUTH). It should work
on nearly all POSIX systems, tested only with SunOS, Linux and
HPUX.
This project provides an amended interface for the Sendmail Milter (libmilter) library which allows the SMTP envelope sender address to be updated by mail filter applications.