Hi Mailman Users,
I've done some more testing with this issue and have determined that this seems to be an issue with how commas within the display name in cc'd messages are being processed with messages sent from the Outlook client.
Here are some test scenarios. Note I set the mailing list I was testing with to hold messages in moderation. Once the message was held I copied the information from the headers directly from Postorius held message information into the space below:
Test Scenario 1: Display name in Outlook: Williamss, Peterr C Outcome: Does not work as intended. The CC address is formatted as Williamss@invalid.domain in messages received by mailing list members, oddly the "Peterr C" part of the display name is not present anywhere in the CC addresses received by mailing list members. Header information from held message in Postorius CC: "os-x-lion@lists.test.org" <os-x-lion@lists.test.org>, "Williamss, Peterr C" <peterbw@test.com>
Test Scenario 2: Display name in Outlook: Williams, Peter D Outcome: Does not work as intended. Interestingly, the CC address in the message received by mailing list members is formatted as two separate addresses in this case: Williams@invalid.domain and Peter@invalid.domain. "D" is not present anywhere. Could this issue be related to the number of characters? Header information from held message in Postorius: CC: "os-x-lion@lists.test.org" <os-x-lion@lists.test.org>, "Williams, Peter B" <peterbw@test.com>
Test Scenario 3: Display name in Outlook: Williamss Peterr C Outcome: Works properly. The CC address contains the correct address and display name information. The information in messages received from the mailing list contain the address formatted correctly as: "Williamss Peterr C peterbw@test.com" Header information from held message in Postorius: CC: "os-x-lion@lists.test.org" <os-x-lion@lists.test.org>, Williamss Peterr C <peterbw@test.com>