Sendgrid-csharp: SendGrid api3 has no way to add multiple ReplyTo Emails

[runxc1]

I am porting v2 to v3 and see no way to to add multiple ReplyTo Emails.

As a side note all of the use of dynamic makes the code very difficult to discover.

• sendgrid-csharp Version:3
• .NET Version: 4.5.2

[thinkingserious]

Hello @runxc1,

I have requested this feature on your behalf for the v3 /mail/send endpoint.

With regards to the dynamic issue, I've added your vote to this ticket: https://github.com/sendgrid/sendgrid-csharp/issues/303

Thanks!

[mbernier]

@runxc1 can you tell me more about what you mean by multiple reply to emails?

[runxc1]

When sending an Email you can specify multiple reply to addresses so that if someone responds it doesn't get sent back to the same Email it was sent From. Anyway you can only specify one ReplyTo using your API where as if you send an Email using SMTP you can specify multiple

[ereshetnikov]

Any update on this issue?
I need an ability to add a few email addresses to "reply to" as well.
Property Mail.ReplyTo doesn't seem to support that.

[awwa]

RFC2822 defines the max number of reply-to as 1. (See 3.6. Field definitions)
https://www.ietf.org/rfc/rfc2822.txt

SendGrid SMTP relay server and some recipient servers might support multiple reply-to, but it seems normal that the reply-to is single. I thinks using SMTP could be the solution.

[thinkingserious]

@ereshetnikov,

We don't currently support this in our API. I have passed along your feature request to the product team.

[collinzh]

@awwa

RFC2822 has been obsoleted by RFC5322, which defines Reply-To to be a comma-separated list of email addresses.

https://tools.ietf.org/html/rfc5322#section-3.6.2

[thinkingserious]

Thanks for the additional feedback @collinzh. I will pass this information along to out product team.

[mbernier]

@collinzh @thinkingserious thanks again! Despite working at this email company for 2 years, I am constantly learning new things about the subject... I will admit that it is not my focus to know all the RFCs, so I very much appreciate the info.

[saurabhnanda]

Is there an upstream (i.e. not library-specific) Github issue to track this? I've just hit the same issue.

[thinkingserious]

Hi @saurabhnanda,

This would be the best place to track.

Could you please take a moment to describe your specific use case?

Thanks!

With Best Regards,

Elmer

[saurabhnanda]

Use-case: sending a personalised/individualised email to a group of people,
where hitting reply/reply-all should start an email thread amongst them. We
can't use cc/bcc because that would result in the same message being
delivered to each person, thus losing the personalisation.

[thinkingserious]

Thanks @saurabhnanda!

[tsalpekar21]

I'd really love to have this feature too! I'm sending a daily automated email to a team and they like to reply to each other to discuss the content of the automated email. Right now, I'm forced to simply CC the users and put one email address on the "to" line for the email. This is bad because the user who received the email is replying to themselves, while trying to talk to everyone else (as everyone else is CC'd).

Ideally, I'd send each team member an email with every other team member listed on the "reply_to" line.

[thinkingserious]

Thanks for the additional feedback and vote @tsalpekar21!

[oliver-zhou]

Any timeline for this implementation before we move off sendgrid?

[thinkingserious]

Hi @oliver-zhou,

Unfortunately, we do not have any timeline to implement this feature currently. I'm going to add your vote to the issue though in our backlog. Thanks!

With Best Regards,

Elmer

[jeloi]

+1 For this feature, I have the same use case as @tsalpekar21. @oliver-zhou could you share what alternative solution you've found?

[oliver-zhou]

@Jeloi - we've backlogged the feature until we have the bandwidth to do something more complex - depending on your use-case, I think creating a mail-group address that reaches all the recipients might be the easiest way to do this

[thinkingserious]

Thanks for the additional vote @Jeloi.

[alekth85]

+1
It's been 2 years. I wonder if the +1 matters anymore.

[thinkingserious]

Hi @alekth85,

You vote definitely matters. We had 2 non-library issues that were reported here implemented this year. I will add your vote to our backlog, thanks! We really appreciate you taking the time to vote and comment.

With Best Regards,

Elmer

[emmanuelmathieu]

+1 we definitely need this feature!

We need to send personalized emails to multiples recipients, and adding them to a replyTo so they can reply to each others.

[thinkingserious]

Thanks for the additional vote @mediaslide.

How do you currently work around this issue?

[emmanuelmathieu]

hi @thinkingserious unfortunatly we don't...! We do not allow Reply-to multiple recipients until Sendgrid fix the issue... i hope they will soon as it is a request that we have from many of users!

Until that, we are thinking to an alternative solution: sending in CC but we will inform our users that with this temporary solution, they will no longer be able to see who has opened or click in the email, as in our case, the webhooks are part of the personalization.

FYI we are using the PHP-API, but we are redirected to this issue. I think when you will release it it will work for any library correct?

[thinkingserious]

Thanks for taking the time to elaborate @mediaslide.

Yes, if this were to be fixed, it would be at the API level, supported across all of our SDKs.

I've added your voice to the issue to help gain visibility internally.

If/when there is progress on this issue, I will post it here. Thanks!

[sachkr]

This should be fixed as this is must feature.

[thinkingserious]

Thanks for the additional vote @sachkr!

[fullmetalpacket]

+1 how come this is still not in production APIs? come on sendgrid!! :)

[mdcanham]

I'm usually against +1 comments, they add unnecessary noise to the issue. However in this case, given that this is the chosen method of upvoting this issue: +1.

[iwannabebot]

+1, we need this feature.

[larafale]

3 years later :) hello guys, looking at https://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/index.html it seems API still does not support multiple replyTo emails. Can any insider confirm it's still the case ? it's okay if it's not, just to know if we should forget this feature. Thanks

[cesarliws]

Hi, I started to implement a new system using SendGrid, but seems that I'll have to drop SendGrid and look for other solution, this feature is a must for the project I'm working on, 3 years of customers asking for the feature and still out of radar?

[thinkingserious]

Hello Everyone,

Thank you for taking the time to add your voice to this issue.

It would be helpful if you can share your current use case so that I can demonstrate that there is not acceptable workaround to the relevant internal team.

Thanks again!

With Best Regards,

Elmer

[mdcanham]

We have a feature in our application where a user can request a personalised introduction to another user through a mutual connection. We send this mutual connection an email letting them know about the request.

Ideally we’d like the mutual connection to be able to hit reply all and make the connection. Our work around at the moment is to have a button in our emails that has a long 'mailto:' link that achieves a similar effect.

The problem with the above workaround is that it has patchy email client support. This feature is really important to us as it would simplify our workflow and improve our email client support.

[thinkingserious]

Thanks for taking the time to explain your use case @mdcanham!

[yaojunguo]

+1, we need this.

[samrueby]

+1

[thinkingserious]

Hi @yaojunguo, @samrueby,

If you have a moment, it would help if you could provide a brief explanation of your use case. If not, no worries, we appreciate the vote.

Thanks!

With Best Regards,

Elmer

[idntfy]

After 3 years with Sendgird I am close to drop it and return back to Mailgun. This is just not serious not having this feature for so long time after reporting.

[slava-tre]

+1

[tanduong]

+1

[tanduong]

@thinkingserious is there any hope on this?

[jamespedid]

My use case is that the end user that sends the email wants to include multiple reply-to emails.

[devon-seitz]

really need this! same use cases as above

[bkd]

this is very important, using the SMTP version simply isnt ticking the boxes, and having this missing feature is just painful. This is a fundamental requirement.

[joelstein]

I switched to Amazon SES because of this. They support multiple Reply-To email addresses.

[Wtrapp]

@thinkingserious did the product team ever provide details or feedback on why they are reluctant to add this feature or give a timeline?

[FabioFleitas]

@thinkingserious Are there any updates to this issue? One of our largest customers reached out regarding this functionality and we may need to move away from Sendgrid if this is not supported.

@joelstein Was switching to Amazon SES straightforward enough?

[joelstein]

@FabioFleitas It was super simple. It's a different API, so of course the setup and syntax is different. But adding multiple Reply-To values was just as easy as adding multiple To values.

[NashIlli]

+1

[samengstrom]

This is a showstopper for us and we can't switch to the SendGrid web API.

In our app you can send an archived email to yourself and with correct Reply-To addresses you could then reply so everyone in the original email gets the message. Best for us would be the possibility to add CC addresses without actually sending the mail to them. This way the user would be able to choose between reply and reply all correctly.

[childish-sambino]

I've bumped the internal ticket as there's been no traction in a while (_reference ID: MP-3692_). I'll circle back here when there's any update, but closing for now as this is not something that can be fixed in client-side code.

[cogwork]

Hmm... I was just on the way of switching to SendGrid but I need multiple reply-to:s and realizing that this has been an issue for years without any progress makes me think twice. Really sad since all tests otherwise have work out very well.

[acenario]

+1

[ImperatorRuscal]

I'd like to bump and +1 this as well.

We have an application that handles job/project tasking. Within, it has the ability for a user (normally a supervisor) to send a message via email (think "what is the status of this particular task") -- this message is from the supervisor, and the email is set the same way. But when the employee replies it should reply-to both the supervisor & the application's mailbox -- so that the super gets a response by email, while the application also gets a copy (so that the message is logged into the tasking system).
We were able to do this with MS IIS, MS Exchange (5+), Postfix, and IronPort branded SMTP servers. (As previously pointed out, it is part of the SMTP RFC).

Having both the API and the smtp.sendgrid.net host respect the multiple reply-to capabilities would be rather nice (to the point where we're having to consider moving alternative sending services since this isn't available)

[idntfy]

I complained above too, however, I want to share a workaround that covered my case:

• select single to address and put it to both to and reply-to
• add all other email addresses to cc

So when Reply All in the email client is clicked - from is ignored but all others are filled in.

Not perfect, but it maybe it will help others too.

[N00nDay]

Just ran into a specific situation where this is needed. I have users that send emails through a crm. The emails that are sent are tagged with an ID that is linked to a post in an activity feed. I need the reply-to to have multiple emails because I want one to go the the original sender and the other to be sent to the inbound parse I have set up from sendgrid.

The end result is someone hits reply an email is sent:

1. To the original sender
2. To the inbound parse email so it can be parsed and added as a comment to the original post

[FabioFleitas]

Just ran into a specific situation where this is needed. I have users that send emails through a crm. The emails that are sent are tagged with an ID that is linked to a post in an activity feed. I need the reply-to to have multiple emails because I want one to go the the original sender and the other to be sent to the inbound parse I have set up from sendgrid.

The end result is someone hits reply an email is sent:

1. To the original sender
2. To the inbound parse email so it can be parsed and added as a comment to the original post

That's the exact same use case for us and very unfortunate Sendgrid does not support this currently.

[N00nDay]

Is there a timeline for this or since it has been 4 years can we assume it isn't happening and look for another provider?

[N00nDay]

Because of this issue I have migrated to Mailgun which provides this functionality plus everything else I was using from Sendgrid.

[dimavedenyapin]

This feature is required for my use case and it's upported by email standard.
Why sendgrid doesn't support it?
Considering moving to Mailgun now.

I am using node.js, but it has the same problem.

[parakkajithin]

I too required this feature. Is there any update in it?

[N00nDay]

I switched to mail gun because of this feature. Between this and mail gun
having way better support and better pricing I haven’t thought twice about
it.

On Sun, May 16, 2021 at 11:25 PM parakkajithin @.*>
wrote:

I too required this feature. Is there any update in it?

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[illing2005]

We also need that feature.
Any updates or at least a timeline?

[alyxb]

Need this feature as well, is it possible to modify email headers sent to Sendgrid as a workaround?

[caioariede]

@alyxb as far as I remember, there's an API validation on top of the Reply-To header that impedes that