ReplyWithHeader (RWH) is an Apple Mail Bundle (a.k.a. plugin) to enable quoting of the email message header and automatic default signature  while reply or forward an email. RWH brings Outlook mail header capabilities [Outlook representation, Oops! did I say Outlook :)] into Apple RWH plugin idea have been ported to  Thunderbird and Postbox mail client too.

Quick Links: Features  |  Version Compatibility Matrix   |  Installation  |  FAQ  |  Donators

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Download ReplyWithHeader v6.1 from

Please Note: External website might take few days to reflect new releases.

RWH Download Link - RWH Download Link -

File Size: 222 kb, change log

RWH version for OS Sierra, EL Capiton, Yosemite, Mavericks, Mountain Lion, Lion

RWH Features

Plugin has been completely rewritten from scratch after v3.6 to bring following cool features.

  • Completely manages and brings most important feature towards ‘Message Attribution’
  • Clean handling of header attribution [From, Subject, Date, To & Cc], rest are suppressed
  • Provide special/meaningful email message separate of thin blue color line

Header TypographyTypography feature for message attribution (Headers) in-terms of Font Face, Font Size and Color.

Outlook Header LabelPlugin brings Outlook Header Label options for more readable representation of Message Attribution.

  • First Name and Last Name used instead of quoted email address
  • Attribution Sequence in-terms of From, Sent, To, Cc and  Subject
  • Provides optional prefix transformation for Re: -> RE: and  Fwd: -> FW:

eMail SignatureProvides ability to remove signature and choose alternate signature per email account while doing Reply, Reply All and Forward.

LocalizationSince v4.2 brings globalization in Header Attribution Labels in 16 languages [Deutsch, English, español, français, italiano, 日本語, 한국어, Nederlands, português (Portugal), português, русский, svenska, українська, 中文(简体中文), 中文(繁體中文), norsk bokmål].

Header attribution in choosen language regardless of system locale/language. For e.g. system language is in Japanese & header attribution in English.

Ability to include all the Raw headers from email message is quiet invaluable feature for those of you who have to, or choose to, report spam, phishing, and malware spread through email.

Compatibility Matrix

macOS Version RWH v6.1 RWH v5.3
Mojave -10.14.{1, 2, 3,4,5,6} Supported
High Sierra – 10.13.x Supported
Sierra – 10.12.x Supported
El Capitan – 10.11.x Supported
Yosemite – 10.10.x Supported
Mavericks – 10.9.x Supported
Mountain Lion – 10.8.x Supported
Lion – 10.7.x Supported

How to Install ReplyWithHeader

For Mojave OS & above (RWH v6.0 and above)

  • Follow the instructions file “Install-Instructions-Mojave-OS-and-Above.txt” in the RWH archive file.

For version 4.2 & above

  • Double click Install-or-Upgrade-or-Reenable.command in downloaded zip
  • Restart

For version 4.1 & below

  • Double click Install-or-Upgrade.command in downloaded Zip
  • Restart

RWH Donators


BTC 1Q87wEWvQyxFHag77fqvabrEuPsAidWpyD Paypal

Following RWH users contributed and supporting RWH development (of-course that’s me).

Date Name Amount Donated Via
Mar 21, 2015 Frederick Dick, WA, USA $5.00 PayPal
Apr 1, 2015 I would like to know your good name 60.36 mBTC BTC
Apr 10, 2015 Robert Spendlove, VA, USA $10.00 PayPal
May 8, 2015 Frank Jennings, PA, USA $10.00 PayPal
May 14, 2015 Steve Vandivort, WA, USA $15.00 PayPal
Jun 3, 2015 I would like to know your good name 224.25 mBTC BTC
Jun 15, 2015 Camilo Buitrago-Hernandez, Colombia $5.00 PayPal
Jul 7, 2015 Alastair Brydon, Cambs, UK $20.00 PayPal
Oct 2, 2015 Antoine Stahl, CO, USA $10.00 PayPal
Nov 8, 2015 Henning Caspari, Sohren, Germany $3.00 PayPal
Jan 25, 2016 Nelson Ortega, Barueri SP, Brazil $20.00 PayPal
Mar 4, 2016 Carl Vandray, Hudson Quebec, Canada $10.00 PayPal
Mar 8, 2016 Michele Zambonin, Padova, Italy $10.00 PayPal
Mar 9, 2016 Franco Beretta, Pavia, Italy $5.00 PayPal
Mar 9, 2016 David Lamar, CA, USA $10.00 PayPal
Mar 16, 2016 Dan Hardiman, Rye, UK $20.00 PayPal
Apr 15, 2016 Nathan Schwam, LA, USA $10.00 PayPal
Jul 17, 2016 Anthony Picard, Ryde, Australia $10.00 PayPal
Jul 20, 2016 Henning Caspar, Sohren, Germany $2.00 PayPal
Sep 7, 2016 J M Fitzmaurice, WA, USA $10.00 PayPal
Sep 20, 2016 Guillaume Cabanac, Castanet-Tolosan, France $5.00 PayPal
Sep 24, 2016 Holger Gerhardt, Bonn, Germany $10.00 PayPal
Oct 26, 2016 Mohamed Shahat, Dubai, UAE $10.00 PayPal
Nov 02, 2016 Daniel Jones $10.00 PayPal
Nov 13, 2016 Соколов Михаил, Russia $10.00 PayPal
Nov 23, 2016 Roger Wolf, Switzerland $10.00 PayPal
Dec 27, 2016 C. o’Neill Brown $5.00 PayPal
Jan 07, 2017 Phil Bourke, Australia $100.00 PayPal
Jan 28, 2017 Henning Caspari $5.00 PayPal
May 29, 2017 Frederick Maxwell $5.00 PayPal
Sep 27, 2017 Aris Galanopoulos $10.00 PayPal
Oct 02, 2017 ISIPP $25.00 PayPal
Mar 23, 2018 Isaiah Schultz $5.00 PayPal
Jun 11, 2018 Daryl Barry $3.00 PayPal
Sep 25, 2018 Greg Edmiston Consulting, USA $40.00 PayPal
Oct 10, 2018 Holger Gerhardt, Germany $10.00 PayPal
Oct 21, 2018 Alastair Brydon, UK $20.00 PayPal
Oct 21, 2018 Holger Gerhardt, Germany $10.00 PayPal
Oct 22, 2018 Davide Fantin $20.00 PayPal
Oct 22, 2018 Franco Beretta $10.00 PayPal
Nov 2, 2018 Bartus Kramp $5.00 PayPal
Nov 4, 2018 Paul Roubos, Netherlands $10.00 PayPal
Dec 30, 2018 Charles Merfield, New Zealand $20.00 PayPal
Jan 3, 2019 Glass Designs $3.00 PayPal
Oct 19, 2019 Rich S. $20.00 PayPal

Note for BTC donators: Kindly drop a note to [email protected] after your contribution. Since BTC transaction doesn’t reveal name.

FAQ – Frequently Asked Questions

I have made as simple as possible for you users to install and getting start with plugin for their need! However sometimes user come across few thoughts/question.  Following Q & A might clarify those thoughts/questions.

Q: Any recommendation for settings for best email conversation?


Q: I updated to the latest OS X version but now ReplyWithHeader has been disabled!

This will happen with every new versions of during a OS X updates, that’s something we have to live with when using plugins for Good part is, I have taken care of it – all you have to do is to run the installer of Install-or-Upgrade-or-Reenable.command again, it will re-enable the plugin for you!

Q: I'm done with the plugin, how can I remove/uninstall it?

I believe this question won’t arise on your mind since latest plugin has cool features for your need; if so let me know the improvement pointers here.

To remove/uninstall it:

  • Execute  Uninstall.command file from the
  • OR just delete ReplyWithHeader.mailbundle  from ~/Library/Mail/Bundles
  • Finally restart

That’s it, no other leftover.

Q: Using 2 separate disk (for system & data) in your machine?

Install-or-Upgrade-or-Reenable.command installation file may not be fully help during an install.  So kindly perform following steps manually.

  • First execute file  Install-or-Upgrade-or-Reenable.command
  • Execute below command in
    • defaults write EnableBundles -bool true
  • Now, RWH is ready to use!

Q: I have tried everything, still I'm in trouble!

If nothing here seems to help, follow below step to get support

  • Since v6.1 release, easy to enable debug mode via RWH preferences on “About” Tab
    • Before v6.1 – Enable debug log using below command in the and restart the
      • defaults write MHDebugLog -bool true
  • Open up and type RWH on the right corner test box to filter only
  • Copy all the logs, the line which start with RWH: .............. into some text file using your favorite text editor
  • Finally, you can create an issue here attach that log file or send an email to jeeva [at] myjeeva [dot] com with attachment, you’ll get support as soon as possible!