Understanding Email Account Disconnection Reasons in SalesBlink

title: Understanding Email Account Disconnection Reasons in SalesBlink
description: Common reasons email senders disconnect in SalesBlink, with practical fixes and a recovery checklist.

Overview

This article covers the most common reasons email accounts get disconnected in SalesBlink, along with practical fixes and a recovery checklist. Keeping your mailboxes healthy requires consistent sending behaviour, correct authentication, and good list hygiene.

Possible reasons a mailbox connection can be interrupted by your ESP

1. Sending pattern and pacing
2. • Emails sent less than 10 minutes apart
   • Total daily volume exceeding safe caps (WarmUp + outbound combined)
   • Sudden spikes in volume after a quiet period
   • The same mailbox used by multiple sequences without spacing
   • Using two sending tools on the same mailbox at once
2. WarmUp and migration
3. • Outbound starts before completing an initial WarmUp period
   • Switching from another sender or WarmUp tool without re-ramping
   • Importing "pre-warmed" mailboxes but not giving them time on SalesBlink's infrastructure
3. Reputation and list quality
4. • Bounce rate consistently above 3 to 5 percent
   • Recipients marking messages as spam
   • Overused or low-reputation sending domain or tracking domain
4. Authentication or credential changes
5. • Password or 2FA changed, OAuth token expired or revoked
   • SMTP or IMAP credentials updated but not refreshed in SalesBlink
5. Provider safety controls
6. • Temporary throttles or policy checks from Microsoft 365 or Google
   • Suspicious sign-in prompts that require re-consent
6. Domain configuration
7. • Missing or misaligned SPF, DKIM, DMARC

Fixes by scenario

Sending pattern and pacing

• Set a minimum time gap of 10 to 15 minutes per mailbox.
• Keep daily caps within 40 to 50 during early stages and include WarmUp + outbound.
• Stagger sequences so one mailbox does not send from multiple schedules at once.
• Use one sending platform per mailbox.

WarmUp and migration

Re-ramp on SalesBlink with a conservative path for new or cold mailboxes:

• Days 1 to 7: 5 to 10 emails per day
• Days 7 to 14: 10 to 20 emails per day
• Days 14 to 21: 30 to 50 emails per day

Review your Inbox Placement Test results before increasing caps.

Reputation and list quality

• Clean lists regularly, suppress hard bounces and role addresses.
• Target precisely and keep copy user-friendly to limit complaints.
• Use a clean sending domain and a branded tracking domain.

Authentication or credential changes

• Reconnect the mailbox and complete OAuth prompts.
• If using SMTP, update credentials and app passwords where required.

Provider safety controls

• Reduce pace and total volume, then resume gradually.
• Align sending windows to recipient business hours.

Domain configuration

• Validate SPF, DKIM, DMARC for the sending domain.
• Keep the From name and From address consistent across sequences.

Quick recovery checklist

1. Open Outreach → Email Senders and confirm the status of the affected mailbox.
2. Reconnect and complete OAuth or refresh SMTP credentials.
3. Lower the daily cap to a safe level that includes WarmUp + outbound.
4. Set the minimum time gap to 10 to 15 minutes.
5. Pause overlapping sequences sharing the same mailbox.
6. Clean recent bounces or complaint sources, then re-ramp using the schedule above.
7. Run an Inbox Placement Test before scaling.

Healthy sending defaults

• Minimum gap: 10 to 15 minutes between consecutive sends
• Daily cap during early stages: 40 to 50 total (WarmUp + outbound)
• WarmUp path: 5-10 → 10-20 → 30-50 over 21 days
• One platform per mailbox; avoid overlapping schedules

Where to find the controls in SalesBlink

• Email Sender settings: minimum time gap and daily cap
• Sequence schedule: pacing and staggering
• Inbox Placement Test: seed list tests and placement results
• Inbox: reply monitoring and quick list actions

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Frequently Asked Questions

Does WarmUp count toward my daily cap?

Yes. WarmUp and outbound sends together make up your total daily send count.

What minimum time gap should I use?

Set 10 to 15 minutes per mailbox. Increase the gap as you raise your daily volume.

Can I use another sending tool alongside SalesBlink?

Use one platform per mailbox to avoid double scheduling. If another tool is needed, dedicate a separate mailbox to it.

How long should I warm up before scaling?

At least 14 days for new or cold mailboxes. Scale gradually based on your Inbox Placement Test results.

Where can I adjust these settings?

Email Sender settings control the time gap and daily cap. Sequence schedules handle pacing. The Inbox Placement Test and Inbox help you monitor placement and mailbox health.

Updated on: 18/08/2026