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Using Reply-To:

Yesterday I learned that some ESPs don’t support the reply to: address. I asked around to discover which ESPs did. Here’s what I learned.

ESPs that support reply-to:

ActiveCampaign
AmazonSES
ConstantContact
Campaign Monitor
Cordial
Delivra
DoList
Eloqua
Emma
Epsilon
GetResponse
HubSpot
iContact
Listrak
Mailkit
MailUp
Marketo
N6
Pardotword
Responsys
Sailthru
SFMC
Sharpspring
Twilio / SendGrid
Zeta Global

Thanks to all the colleagues who answered my question.

4 comments

  1. Alberto Miscia says

    For the record we (MailUp) support the reply-to as well.
    I would expect that ESPs that do not support it are the vast minority (provided they are more than one)

  2. Ryan K says

    Twilio SendGrid also supports setting a custom reply-to address.

  3. Mathieu B says

    You can add Dolist and NP6 on the list.
    Both do not make this a mandatory field, but they do support (and promote) its use.

    I agree with Alberto that most ESPs are supporting this. It makes a lot of sense to do so when you consider that most ESPs now require thier clients to use a subdomain to send. The reply to field allows the client to specify a usable adress on its own infrastructure without requiring to set up mail redirections or such from the mailfrom adress (and all the issues that go with mail forwarding).

  4. Martin S says

    GetResponse also supports a custom reply-to address.

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