Direct Mail product and service limits
Limit | Description |
Number of email domains | 5 |
Number of sender addresses | 10. Sender addresses cannot be edited, but can be deleted. You can delete up to 10 sender addresses per month. |
Daily quota | Each Alibaba Cloud account starts with a daily quota of 2,000 emails. This quota is adjusted based on your credit rating. |
Monthly quota | Daily quota × 30 |
Email tags | You can create up to 500 email tags. A single tag is limited to 128 characters. |
Number of recipient lists | 10 |
Number of addresses in a recipient list | Up to 10,000 addresses. The maximum number also depends on your daily quota. |
Number of templates | 100 |
IP protection | 10 IP addresses or IP address ranges |
Free email quota | Each Alibaba Cloud account receives a total of 2,000 free emails for Direct Mail. You can send up to 200 free emails per day. |
Data statistics | Query statistics by sender address and email tag. Real-time data queries are supported. |
Attachment size | Attachments can be sent using SMTP. The console and API do not support attachments. The total size of an email with attachments cannot exceed 15 MB. You can include a maximum of 100 attachments at a time. The 15 MB limit is the actual total size of an email sent over SMTP. Base64 encoding increases the email size by more than 1.5 times. This means the final size is larger than the size on your client. Prepare attachments that are 8 MB or smaller. To send large attachments, add hyperlinks to them in the email body. |
Number of recipients supported per call | SMTP: 100 recipients API: SingleSendMail (100 recipients), BatchSendMail (1 recipient list) Console: 1 recipient list |
Console email template | Email title: 100 characters Email body: 1 MB |
Console recipient list variables | The UserName variable is limited to 75 characters. A length of 50 characters or less is recommended. The NickName, Gender, Birthday, and Mobile variables are each limited to 25 characters. |
Data query | Data is retained for 1 month. |
Sending frequency | For more information, see Three ways to send emails. |