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Command

nylas deliverability send-events summary

Show send health, totals, and rates.

Written by Qasim Muhammad Staff SRE

What does nylas deliverability send-events summary do?

The nylas deliverability send-events summary command reports send health, totals, and delivery, bounce, and complaint rates with the change against the prior period. It covers only messages sent from an Agent Account or through Transactional send; messages from connected grants such as Google or Microsoft accounts are not included. Health always grades the last 7 days and lists findings when a domain is at risk or critical.

Usage

nylas deliverability send-events summary [--start YYYY-MM-DD] [--end YYYY-MM-DD] [--sending-domain DOMAIN] [--json]

Flags

FlagDescription
--jsonOutput as JSON
--no-colorDisable color output
--verbose(-v)Enable verbose output
--configCustom config file path
--help(-h)Show help for the command
--limitLimit results (most list commands)
--yes(-y)Skip confirmations
--endLast UTC day, YYYY-MM-DD, inclusive (default: today)
--sending-domainOnly this sending domain
--startFirst UTC day, YYYY-MM-DD (default: 6 days before --end)

Examples

The nylas deliverability send-events summary command reports send health, totals, and delivery, bounce, and complaint rates with the change against the prior period.

Last 7 days

nylas deliverability send-events summary

One month for one sending domain

nylas deliverability send-events summary --start 2026-10-01 --end 2026-10-31 --sending-domain mail.example.com

Example output

Health:        healthy (last 7 days, 2026-10-27 → 2026-11-02)
Prior period:  2026-10-20 → 2026-10-26

SENT  DELIVERED  HARD BOUNCES  SOFT BOUNCES  UNDETERMINED  REJECTED  COMPLAINTS
1200  1180       12            5             0             0         1

RATE           VALUE   CHANGE    PRIOR   STATUS
delivery       98.33%  +0.40 pp  97.93%  ok
bounce (hard)  1.00%   -0.20 pp  1.20%   ok
complaint      0.08%   —         —       ok

Troubleshooting

invalid --start value on a metrics command

Metrics windows take UTC dates in YYYY-MM-DD form, both days included, and can span at most 365 days. Unix timestamps and look-backs are for the activity list commands only.

A rate shows a dash instead of 0%

A dash means the rate has no denominator in the window (for example no sends), so there is no data. It is not a 0% rate.

Health is insufficient_data

Health is graded only when the last 7 days have at least 100 sends. Totals and rates for your window still show.

Recommended guides

Run nylas deliverability send-events summary --help for full help output.