accompanying letter meaning in English

附函

Accompanying letter - monetary policy objective
随附函件-货币政策目标
The corresponding author must confirm that the correspondence address in the manuscript agrees with the address in the accompanying letter
这句话是什么意思，是说通讯作者的信箱地址必须和发信人地址一样吗？那岂不是要老板亲自发信了！
Upon enquiry by the pco , it was ascertained that the bank did not obtain the data from the institute concerned , but it was the institute that sent out the promotional materials on the affinity card programme with an accompanying letter inviting the complainant to join the programme . however , in its letter , the institute required that , unless the complainant exercised the " opt - out " option before a specified date , it would regard her as agreeing to the offer of the service by the bank
公署调查后证实银行并无从院校方面获得投诉人的个人资料，倒是院校方面在寄发校友咭计划的宣传资料予投诉人时，夹附了邀请投诉人参加该计划的信件。然而，该院校在信中提及除非投诉人在指定日期前向院校提出拒绝服务选择，否则会视她同意接受有关银行提供的服务。