(PowerShell) Upload (Append) Email to an IMAP Mailbox and get the UID of the Appended Email

Upload / append an email to an IMAP mailbox and get the UID of the appended email.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$imap = New-Object Chilkat.Imap

# Connect to an IMAP server.
# Use TLS
$imap.Ssl = $true
$imap.Port = 993
$success = $imap.Connect("imap.someMailServer.com")
if ($success -ne $true) {
    $($imap.LastErrorText)
    exit
}

# Login
$success = $imap.Login("myLogin","myPassword")
if ($success -ne $true) {
    $($imap.LastErrorText)
    exit
}

# Check the capabilities of the IMAP server.
$cap = $imap.Capability()
$("IMAP capabilities: " + $cap)

# If the capabilities string contains the substring "UIDPLUS", then 
# the UID of the appended email will be available in the AppendUid property (see below).

# For example, the GMail IMAP server has these capabilities (at this current time)
# * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN 
# X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT 
# APPENDLIMIT=35882577 LIST-EXTENDED LIST-STATUS

$email = New-Object Chilkat.Email

# Load the email from a .eml file.
$success = $email.LoadEml("myEmail.eml")
if ($success -ne $true) {
    $($email.LastErrorText)
    exit
}

$success = $imap.AppendMail("Inbox",$email)
if ($success -ne $true) {
    $($imap.LastErrorText)
    exit
}

# If the IMAP server supports the UIDPLUS extension, then the 
# imap.AppendUid will contain the UID of the appended email.
# Otherwise AppendUid will be 0.
$("UID of appended email: " + $imap.AppendUid)

# If the IMAP server does NOT have UIDPLUS, then a program can 
# first select the mailbox, get the value of the UidNext property,
# and then append.  The appended email SHOULD have a UID equal to 
# the UidNext that was obtained just prior to appending (assuming no other
# program is simultaneously appending an email to the same mailbox).

# Note: It is not required to select a mailbox to append.  The select is only
# done for the purpose of obtaining the UIDNEXT value.
$success = $imap.SelectMailbox("Inbox")
if ($success -ne $true) {
    $($imap.LastErrorText)
    exit
}

$uidNext = $imap.UidNext

$success = $imap.AppendMail("Inbox",$email)
if ($success -ne $true) {
    $($imap.LastErrorText)
    exit
}

$("The UID of the appended email SHOULD be " + $uidNext)

$("Email uploaded to Inbox!")

# Disconnect from the IMAP server.
$success = $imap.Disconnect()