Rate Limits

Control sending by tenant and mailbox so one client cannot affect everyone else.

V3 production layer

Limit table

stored

Usage rows 24h

send events

Enforcement

before SMTP send

Set limit

Use tenant_send to limit the whole OpsHub tenant. Use mailbox_send to limit one connected mailbox.

Test tenant limit: tenant_id=opshub, mailbox_id blank, scope=tenant_send, 10 / 100 / 500 Test mailbox limit: tenant_id=opshub, mailbox_id=2, scope=mailbox_send, 5 / 50 / 250

Current limits

If a limit saves correctly it must appear here immediately. These active limits are checked before every gateway SMTP send.

ID	Tenant	Mailbox	Scope	Minute	Hour	Day	Status	Updated
1	opshub	2	mailbox_send	5	50	250	active	2026-10-05 22:46:41
2	opshub	All tenant mailboxes	tenant_send	10	100	500	active	2026-10-05 22:45:25

Last 24h usage

Usage is recorded only after a successful send. If this table is empty, send a test email from the Send Email page after saving a limit.

Tenant	Mailbox	Action	Count	Last seen
No usage records yet.