1redone / gmail.ps

A PowerShell module for accessing your Gmail. Connect via IMAP and manipulate emails and labels.

Gmail for PowerShell

A PowerShell module for managing your Gmail, with all the tools you'll need. Search, read and send emails, archive, mark as read/unread, delete emails, and manage labels.

This module is still under development.

Table of contents

• Install
• Features
• Get help
• Commands
  • New-GmailSession
  • Remove-GmailSession
  • Invoke-GmailSession
  • Get-GmailSession
  • Clear-GmailSession
  • Get-Mailbox
  • Get-Message
  • Update-Message
  • Receive-Message
  • Move-Message
  • Remove-Message
  • Measure-Message
  • Get-Conversation
  • Save-Attachment
  • Get-Label
  • New-Label
  • Set-Label
  • Remove-Label
• Roadmap
• History
• Author
• Third Party Libraries
• Contributing
• License

Install

If you have PsGet installed you can simply execute:

Install-Module Gmail.ps

Or install it manually:

git clone https://github.com/nikoblag/Gmail.ps.git
cd Gmail.ps
.\install.ps1

Features

• Read emails
• Search emails
• (Update) emails: label, archive, delete, mark as read/unread/spam, star
• Manage labels
• Move between labels/mailboxes
• Automatic authentication, using the Windows Credential Manager

Get help

• List of all available commands

  Get-Command -Module Gmail.ps

• Help for a specific command.

  Get-Help <command>

Commands

For more detailed information about a command use the help.

New-GmailSession

Opens a connection to a Gmail account using the specified credentials and creates a new session. If a generic credential is created using the Windows Credential Manager (address: Gmail.ps:default), a session is automatically created using the stored credentials each time the cmdlet is executed without a -Credential parameter.

New-GmailSession [[-Credential] <PSCredential>] [<CommonParameters>]

Parameters

Name	Pipeline input	Default
-Credential	No	Get-StoredCredential Gmail.ps:default or Get-Credential

Examples

1. Authenticating a Gmail session using the stored credential in the Gmail.ps:default entry. If there is no credential stored a prompt for username and password will be displayed.

   $gmail = New-GmailSession
   # play with your gmail...

Remove-GmailSession

Closes the connection to Gmail and destroys the session.

Remove-GmailSession [-Session] <ImapClient> [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName

Examples

1. Closing an already opened connection to a Gmail account:

   $gmail | Remove-GmailSession

Invoke-GmailSession

Creates a new Gmail session and passes it to a script block. Once the block is executed, the session is automatically closed.

Invoke-GmailSession [[-Credential] <PSCredential>] [-ScriptBlock] <ScriptBlock> [<CommonParameters>]

Parameters

Name	Pipeline input	Default
-Credential	No	Get-StoredCredential Gmail.ps:default or Get-Credential
-ScriptBlock	No

Examples

1. Creates a Gmail session, returns the number of messages in the Inbox and then closes the session. The automatically created session can be accessed inside the script block via the $args variable.

   Invoke-GmailSession -ScriptBlock {
       $args | Count-Message
   }

2. Creates a Gmail session, returns all the labels used in that account and then closes the session. The automatically created session can be accessed inside the script block via the $gmail variable.

   Invoke-GmailSession -ScriptBlock {
       param($gmail)
       $gmail | Get-Label
   }

Get-GmailSession

Returns a list of all opened Gmail sessions.

Get-GmailSession

Clear-GmailSession

Closes all opened Gmail sessions.

Clear-GmailSession

Get-Mailbox

Returns the Inbox if no parameters are specified, an existing Label or one of the default Gmail folders (All Mail, Starred, Drafts, Important, Sent Mail, Spam).

Alias: Select-Mailbox

Get-Mailbox -Session <ImapClient> [[-Name] <String>] [<CommonParameters>]

Get-Mailbox -Session <ImapClient> [-Label <String>] [<CommonParameters>]

Parameters

Name	Pipeline input	Default (List of possible values)
-Session	ByValue, ByPropertyName
-Name	ByPropertyName	Inbox (All Mail, Starred, Drafts, Important, Sent Mail, Spam)
-Label	ByPropertyName

Examples

1. Get the unread messages in the inbox:

   $inbox = $gmail | Get-Mailbox
   $inbox | Get-Message -Unread

2. Get the messages marked as Important by Gmail:

   $gmail | Get-Mailbox "Important" | Get-Message

Get-Message

Returns a (filtered) list of the messages inside a selected mailbox (see Get-Mailbox). The returned messages will have their body and attachments downloaded only if the -Prefetch parameter is specified.

Every listed message has a set of flags indicating the message's status and properties.

Flag	Meaning
u	Is unread
f	Is fetched
i	Is important
s	Is starred
a	Has attachment

Any flag may be unset. An unset flag is the equivalent of "is not" and is represented as a - character. --i-a means the message is not Unread, is not Fetched, is Important, is not Starred and has atleast one attachment.

Supports automatic name completion for the existing labels.

Alias: Filter-Message

Get-Message [-Session] <ImapClient> 
			[[-From] <String>] [[-To] <String>] 
			[[-On] <DateTime>] [[-After] <DateTime>] [[-Before] <DateTime>] 
			[[-Cc] <String>] [[-Bcc] <String>] 
			[[-Subject] <String>] [[-Text] <String>] [[-Body] <String>] 
			[[-Label] <String[]>] [[-FileName] <String>] [[-Category] <String>] 
			[-Unread ] [-Read ] [-Starred ] [-Unstarred ] [-HasAttachment ] 
			[-Answered ] [-Draft ] [-Undraft ] [-Prefetch ] [<CommonParameters>]

Parameters

Name	Pipeline input	Default (List of possible values)
-Session	ByValue, ByPropertyName
-From	No
-To	No
-On	No
-After	No
-Before	No
-Cc	No
-Bcc	No
-Subject	No
-Text	No
-Body	No
-Label	No
-FileName	No
-Category	No	none (Primary, Personal, Social, Promotions, Updates, Forums)
-Unread	No
-Read	No
-Starred	No
-Unstarred	No
-HasAttachment	No
-Answered	No
-Draft	No
-Undraft	No
-Prefetch	No

Examples

1. Get the unread messages in the inbox:

   $inbox = $gmail | Get-Mailbox
   $inbox | Get-Message -Unread

2. Get the messages marked as Important by Gmail:

   $gmail | Get-Mailbox "Important" | Get-Message

3. Filter with some criteria:

   $inbox | Get-Message -After "2011-06-01" -Before "2012-01-01"
   $inbox | Get-Message -On "2011-06-01"
   $inbox | Get-Message -From "[email protected]"
   $inbox | Get-Message -To "[email protected]"

4. Combine flags and options:

   $inbox | Get-Message -Unread -From "[email protected]"

Update-Message

Archives, marks as spam, as read/undead and adds/removes a star from a given message.

Update-Message -Session <ImapClient> -Message <MailMessage> [-Read ] [-Star ] [-Archive ] [-Spam ] [<CommonParameters>]

Update-Message -Session <ImapClient> -Message <MailMessage> [-Read ] [-Unstar ] [-Archive ] [-Spam ] [<CommonParameters>]

Update-Message -Session <ImapClient> -Message <MailMessage> [-Unread ] [-Star ] [-Archive ] [-Spam ] [<CommonParameters>]

Update-Message -Session <ImapClient> -Message <MailMessage> [-Unread ] [-Unstar ] [-Archive ] [-Spam ] [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue
-Read	No
-Unread	No
-Archive	No
-Star	No
-Unstar	No
-Spam	No

Examples

1. Each message can be manipulated using block style. Remember that every message in a conversation/thread will come as a separate message.

   $messages = $inbox | Get-Message -Unread | Select-Object -Last 10
   foreach ($msg in $messages) {
       $msg | Update-Message -Read # you can use -Unread, -Spam, -Star, -Unstar, -Archive too
   }

Receive-Message

Fetches the whole message from the server (including the body and the attachments).

Receive-Message [-Session] <ImapClient> [-Message] <MailMessage> [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue

Examples

1. To read the actual body of a message you have to first fetch it from the Gmail servers:

   $msg = $inbox | Get-Message -From "[email protected]" | Receive-Message
   $msg.Body # returns the body of the message

Move-Message

Moves a message to a different mailbox or label.

Supports automatic name completion for the existing labels.

Move-Message -Session <ImapClient> -Message <MailMessage> [-Mailbox] <String> [<CommonParameters>]

Move-Message -Session <ImapClient> -Message <MailMessage> -Label <String> [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue
-Mailbox	No
-Label	No

Examples

1. Move the message to the All Mail mailbox:

   $msg | Move-Message "All Mail"

2. Move the message to the Test label:

   $msg | Move-Message -Label "Test"

Remove-Message

Sends a message to the Gmail's Trash folder.

Remove-Message [-Session] <ImapClient> [-Message] <MailMessage> [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue

Examples

1. Delete all emails from X:

   $inbox | Get-Message -From "[email protected]" | Remove-Message

Measure-Message

Returns the number of messages in a mailbox (supports labels too).

Alias: Count-Message

Measure-Message [-Session] <ImapClient> [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName

Examples

1. Count the messages in the inbox:

   $inbox | Measure-Message

2. Count the important messages:

   $gmail | Get-Mailbox "Important" | Measure-Message

3. Note that Measure-Message will return the number of all messages in the selected mailbox, not the number of the returned messages (if any). To count the returned messages, use Measure-Object. For example if we have 2 unread and 98 read messages in the Important mailbox:

   # returns 100, the number of messages in `Important`
   $gmail | Get-Mailbox "Important" | Get-Message -Unread | Measure-Message
   
   # returns 2, the number of unread messages in `Important`
   $gmail | Get-Mailbox "Important" | Get-Message -Unread | Measure-Object

Get-Conversation

Returns a list of messages that are part of a conversation.

Alias: Get-Thread

Get-Conversation [-Session] <ImapClient> [-Message] <MailMessage> [-Prefetch] [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue
-Prefetch	No

Examples

1. Search the Inbox based on the message returned by Get-Message, and return all messages that are part of that conversaton and are in the Inbox:

   $gmail | Get-Mailbox "Inbox" | Get-Message -From "[email protected]" | Get-Conversaion

2. Search "All Mail" based on the message returned by Get-Message, and return all messages that are part of that conversaton:

   $gmail | Get-Mailbox "All Mail" | Get-Message -From "[email protected]" | Get-Conversaion

Save-Attachment

Downloads the attachments of a message to a local folder.

Save-Attachment [-Message <MailMessage>] [-Path] <String[]> [-PassThru ] [<CommonParameters>]

Save-Attachment [-Message <MailMessage>] -LiteralPath <String[]> [-PassThru ] [<CommonParameters>]

Parameters

Name	Pipeline input
-Message	ByValue
-Path	No
-LiteralPath	No
-PassThru	No

Examples

1. Save all attachments in the "Important" label to a local folder. Note that without the -Prefetch parameter, no attachments will be downloaded:

   $gmail | Get-Mailbox -Label "Important" | Get-Message -Prefetch | Save-Attachment $folder

2. Save just the first attachment from the newest unread email:

   $msg = $inbox | Get-Message -Unread -HasAttachment | Select-Object -Last 1
   $fetchedMsg = $msg | Receive-Message # or use -Prefetch on Get-Message above
   $fetchedMsg.Attachments[0].Save($location)

Get-Label

Returns the labels applied to a message or all labels that exist.

Get-Label -Session <ImapClient> [-Message <MailMessage>] [[-Like] <String>] [-All ] [<CommonParameters>]

Parameters

Name (Alias)	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue
-Like (-Name)	No
-All	No

Examples

1. Get all labels applied to a message:

   $msg | Get-Label

2. Get a list of the defined labels:

   $gmail | Get-Label

3. Check if a label exists:

   $gmail | Get-Label -Name "SomeLabel" # returns null if the label doesn't exist

New-Label

Creates a new label.

New-Label [-Name] <String[]> -Session <ImapClient> [<CommonParameters>]

Parameters

Name	Pipeline input
-Name	No
-Session	ByValue, ByPropertyName

Set-Label

Applies a label to a message.

Supports automatic name completion for the existing labels.

Alias: Add-Label

Set-Label -Session <ImapClient> -Message <MailMessage> [-Name] <String[]> [-Force ] [<CommonParameters>]

Parameters

Name	Pipeline input
-Session	ByValue, ByPropertyName
-Message	ByValue
-Name	No
-Force	No

Examples

1. Apply a single or multiple labels:

   $msg | Set-Label "Important"
   $msg | Set-Label "Important","Banking"

2. The example above will raise error if one of the specified labels doesn't exist. To avoid that, label creation can be forced:

   $msg | Set-Label "Important","Banking" -Force

Remove-Label

Removes a label from a message or deletes the label from the account.

Supports automatic name completion for the existing labels.

Remove-Label [-Name] <String[]> -Session <ImapClient> [-Message <MailMessage>] [<CommonParameters>]

Parameters

Name	Pipeline input
-Name	No
-Session	ByValue, ByPropertyName
-Message	ByValue

Roadmap

• Write tests
• Send mail via Google's SMTP servers
• Backup/restore all messages and labels

History

Check Release list.

Author

• Nikolay Blagoev [https://github.com/nikoblag]

Third Party Libraries

• AE.Net.Mail library - Copyright (c) 2013 Andy Edinborough
• Get-StoredCredential cmdlet - Copyright (c) 2012 Tobias Burger

Contributing

1. Fork it.
2. Create a branch (git checkout -b my_feature)
3. Commit your changes (git commit -am "Added Feature")
4. Push to the branch (git push origin my_feature)
5. Open a Pull Request
6. Enjoy an ice cream and wait

License

MIT License