title: Why Sequence Won't Send Emails
description: Troubleshoot why your sequence isn't sending emails and how to fix it.

Why Your SalesBlink Sequence Isn't Sending Emails

Start Here: Quick Troubleshooting Flow

Follow these steps in order to figure out what's going on with your sequence.

Step 1: Can you see your sequence in the Sequences list?

• No → Your account subscription may have expired. Go to Billing and check your plan status.
• Yes → Continue to Step 2.

Step 2: What status does your sequence show?

• "Paused" or "Paused due to bounces" → See Sequence Status Issues below.
• "Needs Attention" → One or more of your email senders has a problem. See Email Sender Problems.
• "Completed" → Your sequence has finished sending to all contacts. See Sequence Status Issues.
• "Running" but no emails are going out → Continue to Step 3.

Step 3: Did you click "Save & Schedule"?

• No → Your sequence was never launched. Open it and click Save & Schedule.
• Yes, but I was redirected to the Outbox → See Outbox & Email Approvals.
• Yes → Continue to Step 4.

Step 4: Are your email senders healthy?

• Go to Email Senders in your account.
• Check if any sender shows as disconnected, needs reconnect, or has a low health score.
• If yes, see Email Sender Problems.
• If no, continue to Step 5.

Step 5: Check your sequence settings

• Did you select a timezone?
• Did you set sending days and hours (and is at least one day enabled)?
• Did you select at least one email sender?
• Is your scheduled start time in the future?
• If any of these are missing or wrong, see Timing & Scheduling Issues.

Step 6: Check your contacts

• Are your contacts showing as unsubscribed, bounced, or invalid email?
• Did you set filters that might be excluding all your contacts?
• See Contact & List Issues.

Before You Launch: Why "Save & Schedule" Might Be Blocked

Sometimes SalesBlink won't let you launch a sequence at all. Here's why.

Your sequence is empty or incomplete

SalesBlink won't let you schedule a sequence unless it has:

• At least one Source block (where your contacts come from)
• At least one Action block (like an email step or task)

What to do: Add a Source block and at least one email step to your sequence before trying to schedule.

A step in your sequence is missing required info

Each step in your flowchart needs to be fully configured before it can be saved:

• Source blocks must have a list or integration selected.
• Email blocks must have an email template selected.
• Task blocks must have a task type selected.
• Integration blocks (like Pipedrive or HubSpot) must have all settings filled in.

What to do: Click through each block in your sequence and make sure nothing shows a red warning or missing field.

Your scheduled time is in the past

SalesBlink won't let you schedule a sequence to start at a time that has already passed.

What to do: Choose a start time in the future when you click Save & Schedule.

You haven't selected a timezone

Every sequence needs a timezone so SalesBlink knows when "9 AM" actually is for you.

What to do: Open the sequence settings and select your timezone.

You haven't selected any email senders

A sequence can't send emails without an email sender. SalesBlink will block scheduling if no senders are selected.

What to do: Go to your sequence settings and select at least one email sender.

Your sending schedule has no active days

If you disable all days in your "Email Sending Hours" settings, SalesBlink has no time window to send emails.

What to do: Make sure at least one day is enabled, and that the "From" time is earlier than the "Till" time on each active day.

You enabled "Stop when reply received" but didn't choose what to stop

If you turn on "Stop when reply received," you need to tell SalesBlink whether to stop just that contact or the entire company domain.

What to do: Select either "Contact" or "Contact with same domain" in the dropdown.

You enabled AI replies but haven't set up AI settings

If you turned on automatic AI replies but haven't configured your AI reply preferences, SalesBlink will block scheduling.

What to do: Go to your account settings and configure your AI reply settings, or turn off the AI reply option in your sequence.

Sequence Status Issues

Your sequence is paused

By default, every new sequence starts in a Paused state. This is intentional — it gives you time to review everything before emails start going out.

What to do: Open your sequence and click the Unpause button.

Your sequence was auto-paused

SalesBlink may automatically pause your sequence if:

• You removed all email senders from the sequence.
• A list or email template used in your sequence was deleted or archived.
• Your bounce rate exceeded the safety threshold (see Bounces).

What to do: Check your sequence for missing senders, lists, or templates. Fix the issue, then unpause.

Your sequence is archived

Archiving a sequence is like putting it in the trash. Archived sequences cannot send emails.

What to do: Unarchive the sequence if you still want to use it. Note that archiving also pauses the sequence, so you'll need to unpause it after unarchiving.

Your sequence shows "Completed"

A non-evergreen sequence is marked as Completed once all emails have been sent to all contacts. It won't send any more emails after that.

What to do: If you want to send to new contacts, create a new sequence. If your sequence is set to Evergreen, new contacts added to your source list will automatically be enrolled.

Your sequence shows "Needs Attention"

This status means one or more of your email senders has been disabled due to an error (like an authentication failure or low health score).

What to do: Go to Email Senders and look for any sender marked as disconnected or error. Reconnect or replace the broken sender, then unpause your sequence.

Email Sender Problems

This is the most common reason sequences stop working. If your email sender has a problem, your entire sequence halts.

Your sender is disconnected or needs to reconnect

SalesBlink may disable a sender if:

• The password or app-specific password was changed.
• The email account itself was suspended or disabled by your provider.
• Your IMAP connection failed (this is how SalesBlink checks replies and bounces).
• Your Outlook or Gmail authorization expired.
• Your email provider flagged the account for abuse.

What to do:

1. Go to Email Senders.
2. Find the sender with a warning or error status.
3. Click Reconnect and re-enter your credentials or re-authorize.
4. Once the sender shows as Active, unpause your sequence.

Your sender hasn't been fully set up yet

When you add a new sender, SalesBlink needs to verify that it can both send emails (SMTP) and check your inbox (IMAP). Until this verification is complete, the sender cannot be used in sequences.

What to do: Go to Email Senders and look for any sender stuck in Processing or Verifying. If it's been stuck for a while, delete it and re-add it.

Your sender's health score is too low

SalesBlink gives each sender a health score (0–100) based on deliverability metrics like warmup performance, blacklist status, and bounce rates. If your score drops too low (usually below 80), and you have the "Pause cold emails when health is low" setting turned on, SalesBlink will stop sending cold emails from that sender to protect your reputation.

What to do:

1. Go to Email Senders and check the health score.
2. If it's low, check the sender details for specific issues (missing SPF/DKIM records, blacklist status, etc.).
3. Fix the underlying issue and let the warmup process rebuild your score.
4. You can also temporarily turn off "Pause cold emails when health is low" — but this is risky for deliverability.

Your sender hit its daily sending limit

Each sender has a daily sending limit (the default is 30 emails per day). Once this limit is reached, SalesBlink stops sending from that sender until the next day.

What to do:

1. Go to Email Senders and check the daily limit.
2. If you need to send more emails, increase the limit (be careful — too many emails too fast can hurt deliverability).
3. Alternatively, add more senders to your sequence and distribute the load.

Your DFY sender's subscription expired

If you're using a Done-For-You (DFY) or InboxKit mailbox and your payment fails twice, the mailbox subscription is marked as expired and the sender is disabled.

What to do: Update your payment method and contact SalesBlink support to reactivate the mailbox.

Your sender was deleted

If a sender is deleted from your Email Senders page, any sequence using it will stop working.

What to do: Add a new sender to your sequence and remove the deleted one.

Your sender failed a connection test

SalesBlink periodically sends test emails and checks IMAP connections to make sure your sender is working. If a test fails, the sender may be marked with an error.

What to do: Try reconnecting the sender. If it keeps failing, check with your email provider to make sure the account is active and not restricted.

Timing & Scheduling Issues

Your start time was never set

When you schedule a sequence, you need to pick a date and time for the first emails to go out. If you never set this, the sequence won't start.

What to do: Open your sequence, click Save & Schedule, and choose a start time.

Your timezone is wrong or missing

SalesBlink needs to know your timezone to send emails at the right local time. If your timezone is missing or invalid, SalesBlink falls back to a default timezone (Asia/Kolkata), which may cause your emails to be scheduled for the middle of the night or the wrong day entirely.

What to do: Open your sequence settings and make sure your timezone is correct.

You have no active sending days

In your sequence settings, you choose which days of the week and what hours emails can be sent. If you accidentally disable all days, SalesBlink has no window to send anything.

What to do: Check your Email Sending Hours settings and make sure at least one day is turned on. Also make sure the "From" time is earlier than the "Till" time on each active day.

Your emails are scheduled for a future date

SalesBlink may push emails into the future if:

• You selected a start time in the future.
• Your sending hours haven't started yet today.
• Your sender hit its daily limit, so remaining emails are pushed to the next available day.
• You enabled random delays between emails, which spreads them out.

What to do: Check your sequence settings. If you want emails to go out immediately, choose "Now" as the start time and make sure your sending hours include the current time.

Emails "missed their window" due to a system delay

Here's something important: SalesBlink only looks for emails that are scheduled to go out within the last 2 hours. If there was a system delay, outage, or your sender was disconnected when emails were supposed to send, those emails might have "missed their window." They won't automatically retry.

What to do: Unpause your sequence and click Save & Schedule again. This will reschedule any pending emails to the current time.

Your sequence is stuck in a loop because of sending hours

If a stale email lock is reset (for example, after a system crash), the email's scheduled time is bumped to "now." But if "now" is outside your sending hours, the email gets re-locked and may enter a cycle of being stuck.

What to do: Temporarily extend your sending hours to include the current time, then re-save your sequence. You can narrow the hours again afterward.

Contact & List Issues

Your contact list is empty

If the list connected to your sequence has no contacts, there's nobody to send emails to.

What to do:

1. Check your list to make sure it has contacts.
2. If you're using a CRM integration (Pipedrive, HubSpot, Zoho), make sure the integration is connected and the filter criteria match actual contacts.
3. If you're using a Google Sheet, make sure the sheet is still linked and hasn't been deleted.

Your contacts have invalid email addresses

SalesBlink automatically checks email formats. If an email address is clearly invalid (missing @, too long, etc.), the contact is archived and skipped.

What to do: Check your list for contacts with red warning icons. Update their email addresses or remove them.

Your contacts are unsubscribed

If a contact unsubscribed from your emails (or their entire domain was unsubscribed), SalesBlink will not send them any more emails. This is a legal requirement and cannot be overridden.

What to do: Nothing — unsubscribed contacts are correctly blocked. Focus on your engaged contacts.

Your contacts were removed from the sequence

You or a team member may have manually removed contacts from the sequence.

What to do: Check your list or sequence contacts. Removed contacts can be re-added if needed.

Your contacts are archived

Archived contacts are excluded from sequences.

What to do: Unarchive the contacts if you want to include them.

Your "Send only to verified emails" filter is blocking everyone

If you turned on "Send only to verified emails" and selected very strict accuracy requirements, you might accidentally exclude all your contacts.

What to do:

1. Go to your sequence settings.
2. Check your "Verified Email" settings.
3. Make sure at least one category is selected (Valid, Risky, or Invalid).
4. If your list has mostly risky emails, make sure "Risky" is included.

Your ESG filter is excluding contacts

If you turned on "Skip ESG contacts" and your account has certain ESG categories selected, those contacts will be skipped.

What to do: Review your ESG settings if you believe valid contacts are being excluded.

Your CRM integration lost connection

If you're pulling contacts from Pipedrive, HubSpot, or Zoho and the integration's authorization expired, no new contacts will flow into your sequence.

What to do: Go to Integrations and reconnect the CRM. Then refresh your sequence.

Your Google Sheet stopped syncing

If your list is linked to a Google Sheet and the sheet was unlinked, deleted, or the sync was disabled, new contacts won't be added.

What to do: Reconnect the Google Sheet or upload contacts manually.

Content & Template Issues

Your email template was deleted or archived

If the email template used in your sequence is deleted or archived, SalesBlink auto-pauses the sequence.

What to do:

1. Check your Templates page.
2. If the template is archived, unarchive it.
3. If it's deleted, create a new template and update your sequence to use it.

Your AI-personalized email hasn't generated yet

If you're using AI to personalize emails and the AI generation is still in progress, those emails are held back.

What to do: Wait a few minutes for the AI to finish. If it's stuck for a long time, check your AI credits or settings.

Your email has an attachment that failed to load

If your email template includes images or attachments that are stored remotely and the link is broken, the email may fail to send.

What to do: Check your email template and re-upload any broken images or attachments.

Your follow-up email lost the thread

For follow-up emails to appear in the same thread, SalesBlink needs the Message ID from the previous email. If this is missing (rare), the follow-up may be sent as a new conversation instead of a reply.

What to do: This usually fixes itself on the next send. If it persists, contact support.

Outbox & Email Approvals

You enabled "Review emails before sending" and forgot to approve

This is one of the most common "my sequence isn't running" issues. If you checked the box for "Check email before sending" (also called Outbox mode), SalesBlink creates all your emails but holds them in the Outbox until you manually approve each one.

What to do:

1. Go to the Outbox tab in SalesBlink.
2. Find your sequence's pending emails.
3. Review and click Approve on each email (or Approve All).
4. Once approved, emails will send according to your schedule.

Tip: If you don't want to manually approve every email, turn off "Check email before sending" in your sequence settings.

Bounces & Replies

Your sequence was auto-paused due to high bounce rate

SalesBlink monitors bounce rates to protect your sender reputation. If your bounce rate exceeds the safety threshold (default is 2%), your sequence is automatically paused and all pending emails are cancelled.

What to do:

1. Check your email list quality — bounces usually mean invalid or outdated email addresses.
2. Clean your list before resuming.
3. Go to your sequence and unpause it.

A bounce disabled your email sender

If SalesBlink detects a hard bounce caused by a sender-level issue (like a missing SPF/DKIM record, blacklist, or authentication failure), it may disable the sender entirely.

What to do: Go to Email Senders, find the disabled sender, and check the error message. Fix the underlying issue (DNS records, blacklist removal, etc.) before reconnecting.

A soft bounce added up to 3 strikes

For temporary issues (like a mailbox being full), SalesBlink counts soft bounces. After 3 soft bounces from the same sender, it is permanently disabled.

What to do: Reconnect the sender. If it keeps getting disabled, check the bounce reason and fix the root cause.

Replies stopped your sequence

If you turned on "Stop when reply received" and a contact replies, all future emails to that contact (or their entire domain, depending on your setting) are cancelled.

What to do: This is expected behavior. If you want to continue sending follow-ups despite replies, turn off "Stop when reply received" in your sequence settings.

Account & Billing Issues

Your subscription expired or was cancelled

If your SalesBlink subscription expired, your account was cancelled, or you're on a free plan that doesn't include email sending, all sequences are blocked.

What to do: Go to Billing and renew or upgrade your subscription.

Your trial period ended

Trial accounts are limited to 14 days. After that, sequences stop working.

What to do: Upgrade to a paid plan.

You hit your monthly email send limit

Every plan has a monthly limit on how many emails you can send. Once you hit that limit, all sequences pause until your billing cycle resets.

What to do:

1. Check your plan details to see your monthly limit.
2. Wait for your billing cycle to reset, or upgrade to a higher plan.

Your payment went through but webhooks failed

In rare cases, your payment succeeds but the notification back to SalesBlink fails (for example, if there was a server hiccup). This means your account might still show as expired even though you paid.

What to do: Contact SalesBlink support with your payment receipt. They can manually refresh your account status.

You were redirected to the billing page

If your subscription is expired, SalesBlink redirects you to the billing page and blocks access to the Sequences section entirely.

What to do: Complete your payment. Once your subscription is active, you'll be able to access sequences again.

Flowchart & Sequence Logic

Your sequence has no source

A sequence needs at least one Source block to know where contacts come from. If there are no sources, nobody gets enrolled.

What to do: Add a Source block (like a list or CRM integration) to your sequence.

Your A/B test sent zero contacts to one branch

If you set up an A/B split and one variant randomly gets assigned zero contacts, that branch won't send any emails.

What to do: This is statistically rare with large lists but can happen with small lists. If you have very few contacts, consider removing the A/B split.

Your condition node is holding contacts in "waiting"

If you have an If/Else condition (like "Wait until email is opened"), contacts who haven't met the condition are held in a waiting state until the expiry time you set.

What to do: Check your condition node's expiry time. If it's set too far in the future, contacts will wait a long time.

Your "Match provider" setting has no matching sender

If you turned on "Match sender to contact's email provider" (e.g., send Gmail contacts from a Gmail sender), but you don't have a sender that matches, scheduling may fail or use an unrelated sender.

What to do: Either add a sender that matches your contacts' providers, or turn off "Match provider" to use round-robin sender rotation.

Quick Checks Checklist

Use this checklist to quickly diagnose your sequence:

• My sequence status is Running (not Paused, Archived, or Completed).
• I clicked Save & Schedule and chose a future start time.
• I selected at least one email sender in my sequence settings.
• My email sender(s) show as Active (not Disconnected or Error).
• My email sender(s) have a health score above 80 (if warmup is enabled).
• I selected a timezone in my sequence settings.
• At least one sending day is enabled, with valid hours.
• My contact list has active, non-unsubscribed contacts with valid emails.
• I haven't enabled "Check email before sending" without approving emails in the Outbox.
• My subscription is active and I haven't hit my monthly email limit.
• My sequence has at least one Source and one Email block.
• None of my email templates were deleted or archived.
• My CRM integration or Google Sheet is still connected (if applicable).

If you've checked everything above and your sequence still isn't working, contact SalesBlink support with your sequence name and the last time you expected an email to send.

Updated on: 03/07/2026