在我的IMAP“已發送”郵箱中顯示通過SMTP服務器發送的郵件

Question

我可以使用SMTP服務器發送郵件：

self.smtp_connection.sendmail(
    'my_smtp_username@provider.com',
    recipients,  # list of To, Cc and Bcc mails
    mime_message.as_string()
)

但是我看不到“ my_smtp_username@provider.com” IMAP帳戶的“已發送”框中發送的郵件。 如何在此框中顯示郵件？

Answer 1

SMTP和IMAP協議是兩種不同的事物 ：通過SMTP服務器發送的郵件對於IMAP而言是不可見的。

因此，您需要自己模擬這種行為，方法是將郵件發送到您自己的地址（但不要在MIME對象的“ To：”標頭中添加您），然后將郵件移到正確的框中：

使用API​​抽象，使用相同的帳戶imap_connection正確初始化了smtp_connection和self.email_account ：

def send(self, recipients, mime_message):
    """
    From the MIME message (object from standard Python lib), we extract
    information to know to who send the mail and then send it using the
    SMTP server.

    Recipients list must be passed, since it includes BCC recipients
    that should not be included in mime_message header. 
    """
    self.smtp_connection.sendmail(
        self.email_account,
        recipients + [self.email_account],
        mime_message.as_string()
    )

    ### On the IMAP connection, we need to move the mail in the "SENT" box
    # you may need to be smarter there, since this name may change
    sentbox_name = 'Sent'  

    # 1. Get the mail just sent in the INBOX 
    self.imap_connection.select_folder('INBOX', readonly=False)
    sent_msg_id = self.imap_connection.search(['UNSEEN', 'FROM', self.username])
    if sent_msg_id:
        # 2. Mark it as read, to not bother the user at each mail
        self.imap_connection.set_flags(sent_msg_id, '\Seen')
        # 3. Copy the mail in the sent box
        self.imap_connection.copy(sent_msg_id, sentbox_name)
        # 4. Mark the original to delete and clean the INBOX
        self.imap_connection.set_flags(sent_msg_id, '\Deleted')
        self.imap_connection.expunge()