yóuxiāng dìzhǐ xiěcuò, fùjiàn tàidà, duìfāng yóuxiāng mǎnle, chǔlǐ fāngshì dōu bù yīyàng

邮箱地址写错、附件太大、对方邮箱满了，处理方式都不一样。

If the email address is incorrect, the attachment is too large, or the recipient's mailbox is full, the handling methods are all different.