Help chatopolis send message
It only works because some systems will clean up your mistake.
If you are implementing DKIM be very careful, as DKIM checks will fail (at least on popular validation tools) if you screw this up.
For security reasons, it is recommended for the user to sanitize this parameter to avoid adding unwanted parameters to the shell command.
Since can not allow such characters, so in programs where the use of such characters is required, alternative means of sending emails (such as using a framework or a library) is recommended.
If you pass through using "\r\n" as a separator it may appear to work, but your email will be subtly corrupted and some middleware may break.
In the beta, the default mode for viewing messages is Conversation view.
In this view, an email thread can include many items.
If any item has an attachment associated with it, a paper clip icon appears next to that item in the message list.
To find the item with the attachment, scan the list of items in the thread.