Overview
This page covers how to manage your subscriber lists safely. Here, “safely” means protecting your email deliverability and domain reputation by reducing bounces caused by invalid addresses.
In particular, if you have a large list (thousands to tens of thousands) and haven’t sent email for a while (several months or more), we recommend warming up and cleaning your list before a full send.
Sending to temporary or fake email addresses causes soft/hard bounces. If bounces accumulate, future sends may be restricted, your account may be blocked, or your domain reputation may become difficult to recover. A damaged reputation can take a long time — or be practically impossible — to restore, so it’s important to keep a clean list from the start.
What to follow when adding subscribers
When adding email addresses (subscribers) to Spread, please follow these guidelines.
- Add only subscribers who have given prior email consent.
- Add bot-protection (reCAPTCHA, Botpoison, etc.) to your consent form to block fake signups.
- (If possible) Confirm consent once more with a double opt-in.
- Do not re-send to addresses that have unsubscribed or previously bounced.
Spread’s automatic protections
Spread handles the following automatically so you can keep a clean list.
Automatic bounce & subscription management
If you send all your emails (transactional, marketing, product updates) through Spread, you don’t need to manage bounces and unsubscribes separately. Spread tracks each subscriber’s status (bounced, unsubscribed) and only sends to deliverable recipients.
In addition, if the bounce rate exceeds 5% per 1,000 emails sent during a campaign, Spread automatically stops the campaign and notifies you to prevent further damage.
Automatic detection of likely bounces
Spread runs an automatic check on all registered subscribers to detect email addresses that are likely to bounce in advance. Note that this predicts likelihood and is not 100% accurate, so it cannot fully prevent bounces.
Create a list
A list is a list of subscribers you want to send an email campaign to. For how to create a list and set it as email recipients, see Create a List and Set Recipients.
