Editing a Mailbox's Daily Sending Limit
You can adjust a mailbox's daily sending limit at any time without disconnecting or reconnecting the mailbox. The change is live and takes effect on the very next scheduler tick — no campaigns are disrupted, no authentication is re-requested, and no in-flight sends are lost.
Where to Find It
1) Go to the Mailboxes page.
2) Find the mailbox row you want to adjust.
3) Click the row's dropdown menu (the '...' or gear icon) and select 'Edit Daily Limit'.
4) The same option is available from the mailbox's View Details page if you prefer a fuller view before editing.
5) Enter the new daily limit and save. The value is stored on the mailbox's `dailyLimit` field and is picked up immediately by the next scheduler cycle.
Recommended Ranges
• Brand-new mailbox (first 2 weeks): 20-30 emails/day. Stay conservative while warmup builds reputation.
• Warmed-up mailbox (health score 70+, 2+ weeks of warmup): 50-100+ emails/day is safe. Increase gradually, not all at once.
• Never exceed 500/day per mailbox — that is WarmySender's global per-mailbox hard cap and the practical ceiling for any single inbox.
How It Interacts With Campaign-Level Caps
WarmySender enforces THREE sending caps and the MINIMUM of the three always wins. Sends stop the moment the first cap is hit:
• Mailbox `dailyLimit` — the value you set on this page.
• Campaign `dailySendLimit` — a cap per campaign across all of its mailboxes.
• Campaign-mailbox `maxSendsPerMailboxPerDay` — a cap on how much a single mailbox can send for a single campaign.
Example: mailbox limit 100, campaign limit 50, per-mailbox-per-campaign limit 30 → only 30 sends will happen through that mailbox for that campaign today.
Warmup Traffic Is Counted Separately
Warmup sends use the `warmupTargetDailyVolume` field, not `dailyLimit`. Raising or lowering your campaign daily limit does not affect how many warmup emails your mailbox sends. To adjust warmup volume, go to the Warmup settings for the mailbox instead.
Changes Apply to the Current Day
The daily limit is enforced against today's running send count. If the mailbox has already sent 25 emails today and you raise the limit from 25 to 30, it can still send 5 more today. If you lower the limit below the current count, sending simply pauses until tomorrow — no error, no disruption.