SenderGlow
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Email reputation, made observable

Build a healthier
sending reputation.

Warm up authorized mailboxes, measure where messages land, and improve sender health with a workflow you can actually see.

Open SenderGlow ↗See the platform
SenderGlow Copilot Ready
Create a safe warm-up plan for my mailbox
Recommended start2 messages / day
Daily increase+1 with safeguards
Allowed window09:00–18:00
Conservative plan ready

Designed for the providers and protocols teams already use

G Google OAuthM Microsoft Graph@ IMAP / SMTP✓ SPF · DKIM · DMARC

One focused deliverability workspace

Know what is happening.
Know what to do next.

SenderGlow separates reputation building, placement evidence, and technical mail quality—so one misleading score never tells the whole story.

01

Controlled warm-up

Start slowly.
Build naturally.

Set a starting volume, daily increase, maximum limit, reply rate, sending window, and weekday preference. SenderGlow schedules the work and keeps the mailbox owner in control.

Configure a warm-up plan →
Warm-up is runningPause
REPUTATION SIGNAL

Warming steadily

Volume rises only when the previous step remains healthy.

Day 1 · 2Today · 5
Sent today5
Inbox signals94%
Spam rescued2
Controlled replies1
02

Inbox placement

See where the
message actually lands.

Send one correlated test across the connected measurement network. SenderGlow reports observed Inbox, Spam, and missing results without pretending a small sample is a universal guarantee.

Run a placement test →
LIVE PLACEMENT

4 / 4 results found

Checked 18:42
75Inbox score
Inbox 3 Spam 1 Missing 0
G

GooglePrimary inbox

Inbox
M

MicrosoftFocused inbox

Inbox
@

Private webmailInbox

Inbox
G

GoogleSpam folder

Spam
03

Mail quality

Fix the cause,
not just the symptom.

Review authentication records, message structure, links, headers, and reputation indicators in one readable report. Technical findings remain separate from placement observations.

Review sender quality →
MAIL QUALITY0/100

Strong foundation

SPF authentication Passed
DKIM signature Passed
DMARC policy Monitor
Message structure Healthy
✓

Clear next actionMove DMARC from monitoring to enforcement after aggregate reports remain stable.

Permission by permission

Authorization that is
clear before you connect.

SenderGlow uses Google OAuth and requests only the access required for the feature the mailbox owner enables. We never request the user’s Google password.

Read our Google data use
01
Metadata

Correlate SenderGlow messages and observe their labels, identifiers, timestamps, and approved headers.

Observe
02
Modify

Manage only recognized warm-up messages, including a configured spam-rescue action.

Control
03
Send

Send low-volume warm-up messages and controlled replies while a plan is enabled.

Operate

Encrypted credentials · Revocable access · No advertising · No generalized AI training

01Consent first

The mailbox owner explicitly authorizes access.

02Measured volume

Plans start conservatively and remain limited.

03Observed evidence

Reports describe results, not guarantees.

04Full control

Pause, disconnect, or revoke at any time.

SenderGlow controlled beta

Build reputation with
signals you can see.

A focused workspace for warm-up, placement, and sender health.

Open the application ↗