# Ability to send a campaign email reply on a previous email thread

**URL:** <https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910>\
**Category:** Ideas and Feature Requests\
**Tags:** campaigns, email-backend\
**Created:** [August 20, 2019, 9:01pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910 "2019-08-20T21:01:33Z")\
**Posts on this page:** 15\
**Page:** 1

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**Author:** ![gabe](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gabe/32/436_2.png) [@gabe](https://forum.mautic.org/u/gabe)\
**Post date:** [August 20, 2019, 9:01pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/1 "2019-08-20T21:01:33Z")

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My idea is: the ability to send emails in reply to a previous email, keeping everything in one thread for the recipient. The common use case would be that you send an email, if there’s no reply in x days, follow-up with a reply on the previous thread. We can currently send a follow-up email, but it’s not threaded, it’s a totally seperate new email.

I think these groups of people would benefit from this idea: anyone who sends drip campaigns would benefit from this. Recipients are far more likely to respond if they see a threaded conversation that looks like a real person sent it. Also, many other tools do this, including [Reply App](https://reply.io), [Outreach](https://outreach.io), and others.

Any code or resources to support this idea: In order to do this we’d need to track the previous email ID from the client that sent it and then automatically append an ‘In-Reply-To’ email header to the reply email. I don’t think it’s that complicated…we could create a new action type ‘Send Reply Email’ and that would include the requisite ‘In-Reply-To’ header with the ID of the last email sent to the contact in the campaign.

Are you willing to work on this idea?: Yes, but my technical skills are limited

What skills and resources do you need to explore this further? I think the main Mautic engineers would at least have to outline the desired architecture for this. If I had that I could probably get it done…

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**Author:** ![gabe](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gabe/32/436_2.png) [@gabe](https://forum.mautic.org/u/gabe)\
**Post date:** [August 20, 2019, 9:26pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/2 "2019-08-20T21:26:02Z")

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This seems to be a pretty good overview of how the email header works: [https://wesmorgan.blogspot.com/2012/07/understanding-email-headers-part-ii.html](https://wesmorgan.blogspot.com/2012/07/understanding-email-headers-part-ii.html)

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**Author:** ![traducanu](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/traducanu/32/4726_2.png) [@traducanu](https://forum.mautic.org/u/traducanu)\
**Post date:** [April 9, 2021, 2:33pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/3 "2021-04-09T14:33:41Z")

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Is there any update on this? Otherwise, Is it possible to integrate into the custom headers some custom fields for the In-Reply-To and Message-ID (and generate email ids this way ) to create a sequence of emails in the same thread?

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**Author:** ![Pegasus](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/pegasus/32/511_2.png) [@Pegasus](https://forum.mautic.org/u/Pegasus)\
**Post date:** [November 8, 2021, 3:19pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/4 "2021-11-08T15:19:48Z")

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> [@gabe](#):
>
> My idea is: the ability to send emails in reply to a previous email, keeping everything in one thread for the recipient. The common use case would be that you send an email, if there’s no reply in x days, follow-up with a reply on the previous thread. We can currently send a follow-up email, but it’s not threaded, it’s a totally seperate new email.

Hi, we are experiencing the same challenge and are willing to understand more about how this could be achieved.  
Is there any update? @gabe, did you find any solution to the above?

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**Author:** ![gabe](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gabe/32/436_2.png) [@gabe](https://forum.mautic.org/u/gabe)\
**Post date:** [November 8, 2021, 4:53pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/5 "2021-11-08T16:53:15Z")

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I just posted the idea here. I haven’t made any attempts to actually implement it. This is a feature that is present in pretty much every other marketing automation solution so I’m sure it would get a lot of use. If someone more knowledgable about Mautic code wants to work on this, that would be fantastic!

Also, I’d be willing to contribute to a bounty for anyone that wants to implement this. Maybe if enough of us get together we can make the prize big enough for the coders to take on…

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**Author:** ![CarlJohan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/carljohan/32/7016_2.png) [@CarlJohan](https://forum.mautic.org/u/CarlJohan)\
**Post date:** [April 2, 2022, 10:21pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/6 "2022-04-02T22:21:25Z")

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Hi @gabe , @traducanu did you ever implement this?

If not, I don’t mind opening the wallet if we can do it together.

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**Author:** ![gabe](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gabe/32/436_2.png) [@gabe](https://forum.mautic.org/u/gabe)\
**Post date:** [April 4, 2022, 4:05pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/7 "2022-04-04T16:05:10Z")

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I have not implemented it. I would also be open to spending a little bit of money to get this done. We’ve worked with @kuzmany before for custom bug fixes and features. Anyone else willing to contribute to the cause?

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**Author:** ![CarlJohan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/carljohan/32/7016_2.png) [@CarlJohan](https://forum.mautic.org/u/CarlJohan)\
**Post date:** [April 8, 2022, 10:13pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/8 "2022-04-08T22:13:59Z")

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Hi @gabe , since you have worked with @kuzmany in the past, could you get us a quote for this?

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**Author:** ![entrepositive](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/entrepositive/32/9645_2.png) [@entrepositive](https://forum.mautic.org/u/entrepositive)\
**Post date:** [April 20, 2022, 2:58pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/9 "2022-04-20T14:58:17Z")

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Speaking generally, if you send a second email to the same recipients adding only “RE:” before the same subject, do most popular email services automatically add it to the existing thread?

Or is that strictly based on the send side?

EP

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**Author:** ![Pegasus](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/pegasus/32/511_2.png) [@Pegasus](https://forum.mautic.org/u/Pegasus)\
**Post date:** [May 31, 2022, 12:43pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/10 "2022-05-31T12:43:49Z")

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Hi @gabe, @CarlJohan, if we can fund it together, we would also be willing to contribute the cause.  
Do you know anyone capable of estimating the work/cost required?

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**Author:** ![CarlJohan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/carljohan/32/7016_2.png) [@CarlJohan](https://forum.mautic.org/u/CarlJohan)\
**Post date:** [May 31, 2022, 12:55pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/11 "2022-05-31T12:55:46Z")

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Hi @Pegasus , glad you are onboard. I don’t know of anyone that can actually do this, sorry.

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<div class="post-metadata">

**Author:** ![gabe](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gabe/32/436_2.png) [@gabe](https://forum.mautic.org/u/gabe)\
**Post date:** [May 31, 2022, 1:25pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/12 "2022-05-31T13:25:37Z")

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@kuzmany Do you have a sense of how much it would cost to implement something like this?

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**Author:** ![joeyk](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/joeyk/32/11164_2.png) [@joeyk](https://forum.mautic.org/u/joeyk)\
**Post date:** [July 3, 2022, 1:10pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/13 "2022-07-03T13:10:57Z")

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WOW, I noticed your Plugin, [GitHub - karser/MauticColdEmailOutreachBundle: Send follow-ups in the same email thread for any A/B test variation](https://github.com/karser/MauticColdEmailOutreachBundle) !  
Sounds exciting, can’t wait to test it!

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**Author:** ![CarlJohan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/carljohan/32/7016_2.png) [@CarlJohan](https://forum.mautic.org/u/CarlJohan)\
**Post date:** [July 11, 2022, 6:43pm UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/14 "2022-07-11T18:43:28Z")

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Hi @joeyk , did you test the plugin?

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**Author:** ![mrik007](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/mrik007/32/7823_2.png) [@mrik007](https://forum.mautic.org/u/mrik007)\
**Post date:** [August 1, 2022, 4:08am UTC](https://forum.mautic.org/t/ability-to-send-a-campaign-email-reply-on-a-previous-email-thread/10910/15 "2022-08-01T04:08:19Z")

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Anyone got that solution since im also looking for this exact solution
