A bounce happens when an email cannot be delivered to a recipient's mailbox. Mailcamp records bounce activity in campaign reports so you can understand which contacts did not receive a message and why the receiving mail server rejected or deferred it.
Bounces can affect sender reputation and deliverability, especially when they happen often. Reviewing bounce logs helps you clean your audience and avoid sending repeatedly to addresses that cannot receive your emails.
A hard bounce usually means the email could not be delivered for a permanent reason.
Common causes include an invalid email address, a mailbox that no longer exists, or a recipient server rejecting the address permanently.
Hard bounces are more damaging to deliverability because they tell mailbox providers that your list may contain bad or outdated addresses.
If a bounce is marked as hard, remove or suppress that address before sending future campaigns.
A soft bounce usually means the email could not be delivered for a temporary reason.
Common causes include a full mailbox, a temporary server issue, message size limits, or temporary throttling by the recipient mail server.
Soft bounces should still be monitored, because repeated soft bounces can show that an address or domain is no longer healthy.
If the same contact keeps soft bouncing, review whether the address should remain in your active audience.
In Mailcamp, go to Campaigns.
Open the campaign report or statistics page for the campaign you want to review.
Open the Sending logs menu in the campaign report.
Select Bounce log.
Review the bounce log table. Mailcamp shows the recipient, bounce type, campaign, sending server, and created time.
Use the search box if you need to find a specific recipient.
Use the download option if you need to export the bounce log.
Recipient: the email address associated with the bounce.
Bounce type: the type returned by the sending provider or bounce handler, such as hard, soft, permanent, or another provider-specific value.
Campaign: the campaign connected to the bounced message.
Sending server: the sending server that handled the message.
Created at: when Mailcamp recorded the bounce event.
Remove invalid addresses from future sends.
Clean old or inactive contacts before sending another broad campaign.
Use audience verification when available to identify invalid, risky, or undeliverable addresses.
Check whether many bounces come from the same domain or organization.
Review your sender domain authentication if bounces mention policy, authentication, or rejection issues.
Send only to subscribers who opted in or have a clear relationship with your brand.
Do not use purchased, rented, scraped, or outdated lists.
Authenticate your sending domain in Sending domains.
Keep your audience clean by removing bounced, invalid, and unengaged contacts regularly.
Send at a consistent pace instead of suddenly sending to a large old list.
You cannot find Contact activity: use Sending logs and open Bounce log. The current Mailcamp campaign report does not use a Contact activity tab for bounce review.
You do not see a Hard bounce or Soft bounce dropdown: review the Bounce type column or use search/export. The current bounce log table does not provide that specific dropdown filter.
The bounce type looks different: some sending providers return values such as permanent, transient, hard, soft, or provider-specific labels.
The bounce log is empty: the campaign may not have recorded any bounces yet, or delivery processing may still be in progress.
Many contacts bounced: stop sending to that audience and clean the list before sending again.