Subject: The e-mail services are working again

Dear all,

The mail server is up and working now. We may lose some e-mail messages from 11:00 a.m. to 8:00 p.m. today. Could you please check your mailbox? You may need to resend some e-mail messages or if you expected some external e-mails, you may ask them to send again.

Sorry about all the inconvenience.

Daniel

Analysis

这两封邮件都和设备维修有关。办公室日常运作过程中，难免会遇到一些设备故障。在写此类邮件时，需要明确交代清楚故障事实，由于故障可能会导致的后果以及正在采取的措施，最后不要忘记致歉。另外，为了让读者能第一时间了解到相关信息，此类邮件应该及时发出。