Usually it will be delivered within 3 seconds to 5 minutes.
It can take up to 72 hours to deliver an email. Usually an email will be delivered within 5 minutes. However, a few emails may take longer than 5 minutes depending on the content and email service providers' policies.
You should do the following:
Tencent Exmail blocks advertising emails. Do not contain advertising content in your email subject and content unless necessary.
Please check the error codes document first to determine the error type.
Then check the following items in order:
QcloudFullAccesspermission and whether
If the issue persists, contact Tencent Cloud technical team for support.
Warm-up is a way to establish a reputation for a new IP. Generally all email service providers have a limit on the daily number of emails sent from an IP. You need to start with a smaller number of emails and gradually increase the number each day.
When an end user unsubscribes from emails sent by a customer, Tencent Cloud will notify the customer of the unsubscription event and record the end user's unsubscription status. In addition, the corresponding sender domain will no longer be able to send emails to this end user.
Tencent Cloud maintains an address blocklist database and blocks sending emails to these blocklisted addresses. This helps customers filter out malicious email requests. Moreover, in order to protect customers’ sender reputation, Tencent Cloud adds the recipient addresses that have been rejected recently to the blocklist database. The blocklist database is shared across all accounts, so the address blocklists generated in different accounts are added to the same database. The email addresses in the blocklist database will be blocked for 14 days. You can log in to the SES console or call the API to unblocklist them. If the recipient addresses are valid and not in your blocklist, they may be blocklisted by other accounts. In this case, you can contact Tencent Cloud technical team to unblocklist them.