email.attachment_limit: Email's attachments may exceed what its mail package accepts

Email's attachments may exceed what its mail package accepts.

Area 16, Built-in services; not declinable; the next step is usually the agent's.

Through a mail package, an email's File fields go as attachments to a provider that accepts so much in all, its limits: { attachments: }, so each field says the most it may hold and together they fit:

example

/// Sends each email through `transmissions.send`.provide email {    send: {        call: transmissions.send        input: {            from: message.from            to: message.to            subject: message.subject            html: message.html            text: message.text            attachments: {                each: message.attachments                as: {                    filename: item.name                    content: item.content                }            }        }    }    limits: {        attachments: 10mb    }}

example

/// Sends a customer their invoice.type InvoiceEmail = EmailMessage {    name: Text    invoice: File {        max_size: 12mb    }}

jadpo checkcheck failed: 1 error, 10 files

error InvoiceEmail's attachments may be 12 MB, over the 10 MB postbox accepts

--> domains/billing/emails/invoice_email.jadpo:2:6

  |2 | type InvoiceEmail = EmailMessage {  |      ^^^^^^^^^^^^ too large to send

reason: An email's File fields are sent as attachments, each at most its max_size:, and postbox's package accepts 10 MB of them in all, so an email at its largest would be refused.
next: Lower the max_size: of InvoiceEmail's File fields to 10 MB in all, or send the biggest files as links (agent)
rule: email.attachment_limit
help: https://jadpo.dev/docs/errors/email.attachment_limit