E-mails sent from multisite sites have wrong sender


we run multistie installs for ourselves and our clients. When plugins on multisite sends out e-mails the from name and sometimes also from e-mail address is that of the main site and not, as it should be, of the site where the plugin is active.

Until now we have not been able to find a solution and plugin providers just say: then just use on a single site install.

Do you have any experience with this problem? Looking forward to your answer. Thanks.

Best regards,
Carsten Lund Thomsen