How to attach file for each specific email ?

[huynd26]

Reporting an error? It's helpful to know:
I have some changes in ics file for each recipient and want to make sure that each recipient gets their own ics file instead of one attachment for all emails like below.

    msg = AnymailMessage(
        subject=subject, body=body, from_email=from_email, to=list_emails
    )
    msg.attach("meeting_invite.ics", meeting_invite, "text/calendar")

• Anymail version : 7.0.0
• ESP (Mailgun, SendGrid, etc.) : SparkPost = 1.3.6
• Your ANYMAIL settings (change secrets to "redacted") :

    "SPARKPOST_API_KEY": os.environ.get("SPARKPOST_API_KEY"),
    "SEND_DEFAULTS": {
        "esp_extra": {
            "transactional": True,
            "return_path": "mail@bounces.project.com",
            "ip_pool": "project",
        },
        "track_clicks": True,
    },
    "WEBHOOK_SECRET": os.environ.get("ANYMAIL_WEBHOOK_SECRET"),
}
EMAIL_BACKEND = "anymail.backends.sparkpost.EmailBackend"```
- Versions of Django, requests, python
Django=3.2.18, python=3.9.15+