邮件发送服务，文本、附件、模版多种实现，队列，线程定时任务功能
Contributions last year: 0
Max continuous contributions: 0
Recent contributions: 0
Commits, issues, and pull requests will appear on your contribution graph. Only when the email address used for the commits in local configuration is associated with your GitOSC account, the commits' contribution will be counted.