原配置說明文件

===========

# This is the configuration file for Heirloom mailx (formerly
# known under the name "nail".
# See mailx(1) for further options.
# This file is not overwritten when 'make install' is run in
# the mailx build process again.

# Sccsid @(#)nail.rc	2.11 (gritter) 8/2/08

# Do not forward to mbox by default since this is likely to be
# irritating for most users today.
set hold

# Append rather than prepend when writing to mbox automatically.
# This has no effect unless 'hold' is unset again.
set append

# Ask for a message subject.
set ask

# Assume a CRT-like terminal and invoke a pager.
set crt

# Messages may be terminated by a dot.
set dot

# Do not remove empty mail folders in the spool directory.
# This may be relevant for privacy since other users could
# otherwise create them with different permissions.
set keep

# Do not remove empty private mail folders.
set emptybox

# Quote the original message in replies by "> " as usual on the Internet.
set indentprefix="> "

# Automatically quote the text of the message that is responded to.
set quote

# Outgoing messages are sent in ISO-8859-1 if all their characters are
# representable in it, otherwise in UTF-8.
set sendcharsets=iso-8859-1,utf-8

# Display sender's real names in header summaries.
set showname

# Display the recipients of messages sent by the user himself in
# header summaries.
set showto

# Automatically check for new messages at each prompt, but avoid polling
# of IMAP servers or maildir folders.
set newmail=nopoll

# If threaded mode is activated, automatically collapse thread.
set autocollapse

# Mark messages that have been answered.
set markanswered

# Hide some header fields which are uninteresting for most human readers.
ignore received in-reply-to message-id references
ignore mime-version content-transfer-encoding

# Only include selected header fields when forwarding messages.
fwdretain subject date from to

# For Linux and BSD, this should be set.
set bsdcompat
 

《CentOS6.5通過mailx使用外部SMTPSSL的方式傳送郵件》

https://zhangguoli.cn/centos-sends-mail-in-the-way-mailx-uses-external-smtp-ssl.html

看了一下mail.rc 的配置有幾個點不太明白是具體是配置了什麼，找了一下原配置檔案說明，但是還是不能很好理解。

emmmm，能用就行了。

========

騰訊企業郵箱配置檔案

##exmail：
##郵箱地址
set from=ADDRESS
##smtp伺服器
set smtp="smtps://smtp.exmail.qq.com:465"
##使用者名稱
set smtp-auth-user=ADDRESS
##密碼
set smtp-auth-password=PASSWORD
set smtp-auth=login
##使用SSL的方式傳送郵件
set smtp-user-starttls
set ssl-verify=ignore
#ssl.crt地址
set nss-config-dir=/etc/mail.rc_ssl.crt
 

/etc/mail.rc_ssl.crt

檔案內容為 *.db

可以從下面連結獲取：

From：https://zhangguoli.cn/centos-sends-mail-in-the-way-mailx-uses-external-smtp-ssl.html