Approved large-volume Event invitations
A large Event, delivered through controlled queues.
Approved organizations can request higher sending limits for large Events, including reviewed 100,000+ invitation operations. Attendee lists are validated, batched and paced through managed queues; self-service add-on purchases still stop at 10,000.
- 100,482
- Attendees in an approved operation
- 98,710
- Delivered
- 18 min
- Paced send window
- 1 click
- To stop a running batch
Illustrative figures. Limits and throughput require review and depend on calendar-provider rules.
The pipeline
Six stages between the attendee list and the calendar.
Quarterly product webinar
Batch 4 of 11Attendees have been validated and queued. Invitations are sending now; delivery and acceptance follow.
- Queued
- 100,482
- Sent
- 36,174
- Delivered
- 35,388
- Retrying
- 786
Controls
What the queue does for you.
Delivery pacing
Invites leave in batches sized to the receiving provider rather than all at once. Pacing protects deliverability on the largest sends, which is exactly where a spike would cost the most.
Retry and stop
Failed deliveries can be retried, and a running batch can be stopped at any time.
Mid-flight visibility
Watch delivery status as batches move, attendee by attendee, in the Event’s delivery view.
Verified recipients only
Eligibility is checked when each batch runs, not only when the list was imported. An attendee who has not verified their email is never included.
- 2,000
- Seed invitations monthly
- 4,000
- Stem invitations monthly
- 10,000
- Self-service purchase maximum
- 100,000+
- Reviewed large-volume operation
100,000+ is not a standard plan allowance. Large-volume availability is reviewed separately for approved organizations and remains subject to provider quotas and anti-abuse limits.
Responsible sending
Large-volume access is reviewed separately.
Bloomod reviews the event, expected volume, attendee source and sending setup before approving a higher limit. Every large invitation operation still requires human review.
- Organization and sending-identity review before volume increases
- Calendar-provider quotas and anti-abuse limits still apply
- Anti-spam review applies to new or unusual Event operations
- Registration or consent evidence is expected for imported attendee lists
- No inbox placement guarantee at any volume
Bulk sending, answered.
Something not covered here? Write to [email protected].
How many invitations can I send at once?
Self-service credit purchases stop at 10,000. Beyond that, higher-volume sending, including reviewed operations of 100,000 invitations and above, is approved separately rather than bought from the dashboard.
Why is large-volume sending reviewed rather than self-service?
Calendar invitations write directly into other people's calendars, so a bad list does more damage than a bad email list. Review keeps delivery reputation intact for everyone sending through Bloomod, and it is why only verified recipients ever receive an automated invitation.
What does the queue do that sending in one go does not?
It validates the attendee list, batches it, and paces delivery rather than firing everything at a provider at once. Failures can be retried or the run stopped mid-flight, and progress stays visible while it works.
How do I request a higher limit?
Tell us about the event: the list size, where the addresses came from and when it needs to go out. Bloom is the custom plan for organizations sending at this level, and the allowances are sized to the program rather than sold in fixed blocks.