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I have a client who has two campaigns running, but in one campaign I get an error message when sending an email:

“Email send failed due to transport configuration issue.” If I delete the email address and add the same email address again to the other campaign, everything works perfectly. I tried to copy the campaign, but then I get a message saying I need to upgrade (I can't indicate or adjust this in the plans). So I deleted the campaign and recreated it, but the error message remains. So I have two questions: why does sending work in campaign 1 but not in campaign 2 (with the same email address), and why can't I just copy a campaign? I don't think I can adjust this in the plans.

Posted by Tom Lemmens ·
6 comments

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Comments6

  • Leandro Teixeira

    •

    Oct 22, 2025

    Hey @Tom Lemmens

    In case you really want to copy the campaing right now, use the agency mode to do it (not client impersonation). I got the same problem, but since I had urgency in copying the campaign, I used the agency to do that, and it worked. Either way, this is a problem that needs to be solved…mu suggestion is just a workaround in case you need to copy the campaign with urgency.