Hi, Jeff King wrote: > On Mon, Sep 25, 2023 at 02:45:47PM +0700, Bagas Sanjaya wrote: >> I think you missed perl version. As stated earlier, I'm on Debian testing >> with perl v5.36.0. On there, `perl -V` outputs: > > Mine is the same (I'm on Debian unstable, but the version is currently > the same as the one on testing). [...] > Do you have any other send-email related config? Can you show us the > output of "git config --list"? >From the peanut gallery... could the presence or lack of the Email::Valid perl module be a factor? -- Todd