Will suppression lists prevent transactional emails from being delivered?

Email marketer from HubSpot responds that suppression lists are critical for maintaining email marketing health. If an email address is on the suppression list (due to unsubscribe, bounce, or spam complaint), all emails, including transactional ones, should be suppressed. This helps maintain a positive sender reputation.

Email marketer from Litmus responds that a good email list hygiene involves respecting unsubscribes and suppression lists. Continuing to send transactional emails to suppressed addresses can damage your reputation and get you blocklisted. Always check your suppression list before sending any email.

Email marketer from Reddit explains that suppression lists absolutely affect transactional emails. If someone unsubscribes or hard bounces, they shouldn't receive any email, even order confirmations. Ignoring suppression lists leads to deliverability problems and potential blacklisting.

Email marketer from Mailjet shares that a suppression list contains contacts who should not receive emails. This includes transactional emails. Mailjet emphasizes the importance of respecting these preferences to maintain a good sender reputation and avoid being marked as spam.

Email marketer from StackOverflow shares that you must respect the suppression list for all email types, including transactional ones. Programmatically, check the list before sending any email. Some ESPs automatically handle this, but it's essential to verify.

Email marketer from ActiveCampaign shares that suppression lists ensure deliverability by preventing emails to recipients who have opted out or experienced issues. Transactional emails are also included in this suppression to comply with opt-out requests and improve sender reputation.

Email marketer from Sendinblue explains that suppression lists prevent sending emails to contacts who have unsubscribed, marked emails as spam, or hard bounced. Transactional emails will also be blocked if the recipient is on the suppression list, ensuring compliance and protecting sender reputation.

Email marketer from Campaign Monitor shares that cleaning your email list is essential for maintaining deliverability. Any email address that has hard bounced, unsubscribed, or marked your message as spam should be immediately added to your suppression list. Failing to do so and continuing to send transactional emails may lead to deliverability issues.

Email marketer from Email on Acid responds that poor list hygiene, including ignoring suppression lists, negatively impacts deliverability. If you're sending transactional emails to suppressed addresses, you are hurting your sender reputation, which affects all your email sends.

Expert from Spamresource.com explains that suppression lists should apply to all types of emails, including transactional ones. Sending transactional emails to addresses on the suppression list can harm your sender reputation and lead to deliverability issues. They emphasize that respecting suppression lists is crucial for maintaining good email practices.

Expert from Word to the Wise responds that it is critical to ensure your transactional emails also honor the unsubscribe requests in your suppression lists. They recommend maintaining a clean list for optimal sending and deliverability, which includes suppressing all emails when a recipient has unsubscribed.

Expert from Email Geeks explains that a suppression list generally affects ALL email to a recipient coming out through that ESP, regardless of the content of the message. Particularly if it’s a user unknown bounce, there’s no reason to think it’s going to deliver just because it’s a transactional message.

Documentation from Google Workspace explains that sending to unsubscribed users can result in your email being marked as spam. They recommend immediately removing unsubscribed recipients from your mailing list and honouring all unsubscribe requests. Continuing to send to these recipients, including transactional emails, will damage your sender reputation and may result in your emails being sent to spam.

Documentation from Twilio SendGrid shares that Global Suppressions prevent you from sending email to addresses that have previously bounced or unsubscribed from your mail. This suppression affects all email types, including transactional, to protect your sender reputation. To send to these addresses again, they must be manually removed from the suppression list.

Documentation from Mailchimp explains that cleaning email lists involves removing invalid, unsubscribed, or inactive addresses. Mailchimp automatically adds bounced or unsubscribed addresses to a suppression list, which prevents any further emails, including transactional ones, from being sent. This helps maintain a healthy sender reputation.

Documentation from Postmark shares that Postmark automatically suppresses hard bounces to protect sender reputation. Once an email address hard bounces, all further attempts to send to that address, including transactional emails, will be blocked. The address needs to be manually reactivated if valid.

Documentation from Amazon Web Services explains that when an email bounces (especially a hard bounce), the address is automatically added to a suppression list. AWS will block all future emails, including transactional ones, to that address to protect sender reputation. Users must manually remove addresses from the suppression list if they wish to send emails to them again.