PHP - Specifying the SMTP server to send mail through

Question

I am developing a simple webmail client for IMAP-based email services using PHP's IMAP library, and I was wondering if there was any way to specify the SMTP server to use when sending an outgoing message, so that the message will be placed in the user's Sent mailbox when they are logged into their IMAP account. I saw that their is an imap_mail() function however it looks from the docs like it is just basically an alias for the normal mail() function, or am I wrong in assumming that?

Answer 1

为什么不为此功能使用全功能类，例如PHPMailer ？

Answer 2

Saving a copy to the Sent Mail folder is a function of IMAP, and is completely unrelated to queuing the message for delivery via SMTP. Ie, your code will have to do both operations separately -- one does not imply the other.

Answer 3

I have noticed that Gmail adds a copy to the sent folder on its own. Is this common behavior for the big web-mail providers?