[libvirt] Mails rejected by mailist?

Hi all: I've tried to send a patch for libvirt-php using git send-email yesterday. My user.email is configured as a gmail address, that is this one. But git sent patches from local postfix. git CC the patchs to my gmail and I can revice it, but not listed on the maillist. Is it rejected by the maillist? And what should I do to send the patches?