Understanding and Managing Email Bounce on systeme.io

A bounce means your message never reached the recipient’s inbox. On systeme.io, bounces affect campaign statistics, contact status, and your place in sending reputation pools. Help article 2924 explains the mechanics—this guide turns that into an actionable workflow.

Ignoring bounces is expensive: ISPs and systeme.io treat repeated sends to bad addresses as abuse signals, which pushes more mail to spam for everyone on your list.

When you send from systeme.io, the recipient’s mail server accepts or rejects the message. A rejection (or failed delivery after retries) is recorded as a bounce in your newsletter or automation statistics.

Bounce rate = bounced deliveries ÷ emails sent (shown per campaign under Stats → Bounced). Track it weekly alongside open rate and spam rate.

systeme.io distinguishes two categories: hard bounces and soft bounces/blocks.

Hard bounce (permanent)

• Invalid address, domain does not exist, or mailbox permanently removed.
• Email will not be delivered on retry.
• In statistics, the address often appears gray and is not clickable—the platform treats it as a definitive failure for that send.

Soft bounce (temporary)

• Mailbox full, server temporarily down, or short-term block.
• Providers may retry delivery over hours (often up to ~72 hours in industry practice).
• In statistics, the address may appear blue and clickable—a temporary failure for that message.
• Do not rush to permanently delete every soft-bounce address; many resolve on the next send.

If soft failures repeat and become permanent, they escalate toward hard-bounce behavior and list suppression.

1. Open Email → Newsletters (or the sent broadcast).
2. Click Stats on the message.
3. Select the Bounced tab to see bounce count and rate.
4. Review each address:
   • Gray → hard bounce pattern.
   • Blue / clickable → soft bounce pattern.

Use this view after every major send. A spike right after importing a large CSV usually means stale or purchased data—not a platform bug.

Separate from per-message stats, contacts can carry a Bounced state in CRM.

• Example: inbox full → address may be marked Bounced on the contact record.
• Future emails are not attempted to that contact— systeme.io blocks the send because delivery would fail again.
• That protects your bounce rate and shared IP reputation.

For a single-message soft rejection that does not update the contact, the platform may only log the bounce on that campaign—no global Bounced flag.

Best practice (recommended)

• Regularly review contacts in Bounced state.
• Delete confirmed bad addresses from your active database.
• Keep lists clean so open rates stay healthy and spam placement drops.

Delete bounced contacts in CRM

1. CRM → Contacts.
2. Contact state filter → Bounced.
3. Select contacts (checkbox / select all).
4. Click Delete and confirm.

Before bulk delete: confirm they are hard bounces or long-term failures, not a one-off soft bounce you still want to reach.

How to Manually Clean Your Email List

systeme.io assigns accounts to risk pools using opens, spam complaints, and bounce rate. Indicative thresholds:

High bounce rates isolate your sending from healthier accounts and increase spam-folder risk. Cleaning bounced contacts is non-optional hygiene.

• Double opt-in so typos never enter your list.
• Never import purchased or scraped lists on systeme.io.
• Use obvious validation on forms (format check, disposable-domain block where possible).
• Warm up volume after large imports—see first-few-days deliverability guidelines.
• Authenticate your domain—bad auth increases soft blocks at gateways.

Hard bounce?

Permanent failure; gray in stats; remove from list.

Soft bounce?

Temporary; blue/clickable in stats; retry later.

Bounced contact status?

Future sends blocked for that address.

Delete how?

CRM → Contact state → Bounced → Delete.

Target bounce rate?

Stay under ~0.7% for low-risk pool alignment.

• What to Do with Contacts That Have a Bounced Status
• How to Delete Bounced Contacts
• Why Do My Emails End Up in the Spam Folder?
• How to Improve Your Email Deliverability

Monitor bounces on every send in systeme.io —clean lists deliver; dirty lists bounce.