所以我试图在服务器上使用ssmtp，但是当我安装ssmtp时出现此错误。
Preparing to unpack .../ssmtp_2.64-8ubuntu2_amd64.deb ...
Unpacking ssmtp (2.64-8ubuntu2) ...
Setting up ssmtp (2.64-8ubuntu2) ...
sed: -e expression #1, char 69: unknown option to `s'
dpkg: error processing package ssmtp (--configure):
installed ssmtp package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.8.7-3) ...
Errors were encountered while processing:
ssmtp
E: Sub-process /usr/bin/dpkg returned an error code (1)
我检查了一下，发现这些文件不匹配可能是一个问题。 但是我的文件确实匹配。
admin@myhostname:~$ cat /etc/hosts
127.0.0.1 localhost
127.0.0.1 myhostname
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
admin@myhostname:~$ cat /etc/hostname
127.0.0.1 localhost
127.0.0.1 myhostname
关于可能会出现什么问题的任何想法？