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.

Troubleshooting: part 3
When opens hurt reputation

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