Hi there,
I have a question regarding mails: One of our customers asked me if I can send him my monthly email with an invoice and some additional PDF (signed and scanned timesheets) containing ONE single attachment. This is needed for their “mail processing” (whatever that means).
The question is no, how can I send outgoing mails from ERPNext that will compress all attachments to one zip file?
I would expect such a function within the send email popup dialog (e.g. when sending the email) but I can’t find anything here.
If there is no such feature available, is there someone who can guide me, how to implement this feature? I can contribute this feature to the community if anybody else is interested in.
Any help is appreciated 
–thomas