On 11/1/23 09:42, Thomas Ward via Mailman-users wrote:
I'm seeing some *really* odd behavior with Mailman 3 and Microsoft Outlook clients (even Outlook Web Access).
When messages come in with a subject prefix, of any way shape or form, Microsoft Outlook seems to *completely strip* the prefixes from any "reply" sent, which could be problematic.
While the "In-Reply-To" header is still intact and such, Microsoft just seems to 'strip' prefixes from subject lines and that causes a problem in some cases.
Has anyone observed this behavior before? If so, have you found any workarounds?
This is a Microsoft/Outlook issue. As you note at https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/... this is just the way Outlook displays the message subject. I know of now way around this, but I don't use Microsoft MUAs.
Does Outlook also strip the prefix from replies? This probably wouldn't matter for replies to the list as the list will add it back, but might be an issue for other direct recipients.
Presumably, Outlook is looking at the [] around the prefix. You might try either dropping the brackets or using something else such as _My-List_ instead of [MyList].
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