[GH-ISSUE #2973] DMARC reports are not parsed if alias address is used #1477

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opened 2026-02-27 11:17:19 +03:00 by kerem · 2 comments

kerem commented

2026-02-27 11:17:19 +03:00

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Originally created by @PatTheMav on GitHub (May 15, 2020).
Original GitHub issue: https://github.com/modoboa/modoboa/issues/2973

This is not necessarily a bug, but more of an important aspect of the current setup:

When an aliased address is used for dmarc reports the transport rule as outlined in the documentation won't work, as the incoming email's destination address will be de-aliased by that point already and using that address won't necessarily work as all emails would end up at the dmarc parser.

My postfix knowledge is somewhat limited, but from what I can tell aliases are resolved before transport rules are evaluated, so except for filtering based on the orig_to instead of the to address using a dedicated email address is the way to use this.

Originally created by @PatTheMav on GitHub (May 15, 2020). Original GitHub issue: https://github.com/modoboa/modoboa/issues/2973 This is not necessarily a bug, but more of an important aspect of the current setup: When an aliased address is used for dmarc reports the transport rule as outlined in the documentation won't work, as the incoming email's destination address will be de-aliased by that point already and using that address won't necessarily work as all emails would end up at the dmarc parser. My postfix knowledge is somewhat limited, but from what I can tell aliases are resolved before transport rules are evaluated, so except for filtering based on the `orig_to` instead of the `to` address using a dedicated email address is the way to use this.

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2026-02-27 11:17:19 +03:00

kerem commented

2026-02-27 11:17:19 +03:00

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@stale[bot] commented on GitHub (Jul 15, 2023):

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale[bot] commented on GitHub (Jul 15, 2023): This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

kerem commented

2026-02-27 11:17:19 +03:00

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@PatTheMav commented on GitHub (Aug 7, 2023):

@tonioo wanna keep this closed? It was more of a feature suggestion than an actual bug anyway. The same thing can probably be achieved by configuring an automatic forwarding of all mails to the dmarc report address to the postmaster address or using the postmaster address to begin with.

@PatTheMav commented on GitHub (Aug 7, 2023): @tonioo wanna keep this closed? It was more of a feature suggestion than an actual bug anyway. The same thing can probably be achieved by configuring an automatic forwarding of all mails to the dmarc report address to the postmaster address or using the postmaster address to begin with.