Chocolatey Fest - Chocolatey's inaugural conference on Windows Automation (WinOps) is coming - Learn more!

This is not the latest version of Blat available.



Package test results are passing.

This package was approved by moderator ferventcoder on 3/19/2015.

Blat is a small, efficent SMTP command-line interface (CLI) mailer for Windows. It is the SMTP sending part of an eMail User Agent (MUA) or eMail client. As such, Blat sends eMail via SMTP (or internet eMail) from the command line.

Combine with Windows integrated command-line program at to schedule sending emails or posting later.

RFC compliance
Source code

To install Blat, run the following command from the command line or from PowerShell:

C:\> choco install blat --version 3.2.4

To upgrade Blat, run the following command from the command line or from PowerShell:

C:\> choco upgrade blat --version 3.2.4


  • tools\chocolateyInstall.ps1 Show
    $packageName = "blat"
    $urlArray = @('', '')
    $url = $urlArray[0]
    $toolsDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
    $url64 = $urlArray[1]
    $checksum = '527140583f0c5df1c35a8a58d45273d6a34c0d47'
    $checksumType = 'sha1'
    $checksum64 = '12c2f2005d91f216935c5fcbf6e9ee5d3d6a5b1c'
    $checksumType64 = 'sha1'
    Install-ChocolateyZipPackage -PackageName "$packageName" `
                                 -Url "$url" `
                                 -UnzipLocation "$toolsDir" `
                                 -Url64bit "$url64" `
                                 -Checksum "$checksum" `
                                 -ChecksumType "$checksumType" `
                                 -Checksum64 "$checksum64" `
                                 -ChecksumType64 "$checksumType64"

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Pedro Mendes
  • Mark Neal



Release Notes


Version History

Version Downloads Last updated Status
Blat 3.2.16 635 Monday, August 8, 2016 approved
Blat 3.2.15 240 Tuesday, June 28, 2016 approved
Blat 3.2.14 156 Thursday, June 16, 2016 approved
Blat 3.2.13 202 Thursday, June 16, 2016 approved
Blat 3.2.12 387 Monday, December 28, 2015 approved
Blat 3.2.11 213 Thursday, November 12, 2015 approved
Blat 3.2.10 193 Wednesday, October 21, 2015 approved
Blat 3.2.9 177 Sunday, October 18, 2015 approved
Show More

Discussion for the Blat Package

Ground rules:

  • This discussion is only about Blat and the Blat package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or Blat, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.

comments powered by Disqus uses cookies to enhance the user experience of the site.