On Wed, Nov 21, 2018 at 02:24:25PM -0600, Mark Kane wrote: > On 2018-11-19 17:26, Matt Schwartz wrote: > > So, I've come across an interesting error with OpenSMTPD 6.4.0. I > > tried sending an email to a virtual user whom I know does not exist on > > my system. The user is [email protected]. Instead of an error > > indicating that the user does not exist, I get the following NDR > > error: 524 5.2.4 Mailing list expansion problem. My virtual users are > > stored in a file called virtuals. > > I ran into this as well and was seeing outbound backscatter for spam to > non-existent virtuals. One solution is generating a separate file with a > list of valid addresses based on the virtual entries, and using a mailaddr > table with rcpt-to so they error with 550 at SMTP-time: > > match from any for domain <vdomains> rcpt-to <addrs> action ... > > Not sure if there's a better way to accomplish this though. >
that's the correct way of handling it in my opinion -- Gilles Chehade @poolpOrg https://www.poolp.org tip me: https://paypal.me/poolpOrg -- You received this mail because you are subscribed to [email protected] To unsubscribe, send a mail to: [email protected]
