maddy 0.8 something broke email_localpart_optional

Open

#751 opened on Jan 25, 2025 4 comments 1 reaction 1 assignee View on GitHub

@foxcpp is already working on this.

Since Jan 26, 2025.

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Description

bug release-blocker

Describe the bug

I have maddy set up as described here: https://maddy.email/multiple-domains/.

    check {                   
        authorize_sender {
            user_to_email chain {  
            step email_localpart_optional           # remove domain from username if present
            step email_with_domain $(local_domains) # expand username with all allowed domains
            }                                        
        }                                                         
    }

Something has changed in 0.8, because when I authenticate with user@email.tld, I get the error below.

maddy  | 2025-01-25T19:31:05.563762356Z submission/sasl: authentication failed  {"reason":"no auth. provider accepted creds, last err: unknown credentials","src_ip":"192.168.1.2:59842","username":"printer@domain.tld"}

Authenticating with just user allows the client to log in, but then I end up with:

maddy  | 2025-01-25T19:38:41.643632364Z submission/sasl: authentication failed  {"reason":"no auth. provider accepted creds, last err: unknown credentials","src_ip":"192.168.1.2:39680","username":"printer@domain.tld"}

For now I rolled back to 0.7.1.

Configuration file

Nothing was changed in the config.

maddy version: 0.8

Dominant language: Go
Stars: 6.1k
Forks: 327
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