Form Error When Sender Email is Gmail.com

  • Resolved Brian

    (@bwold)


    6 years, 9 months ago

    Hello,

    The form has been working for at least a year, but a week ago, someone reported a red-boxed error: “There was an error trying to send your message. Please try again later.” I’ve got CF-DB running, so I see her entries. I tested using my email and the form is sent. A few minutes later, another form entry arrived. Today, someone else got the error… and he’s also using @gmail.com. So I tested with a Gmail addy, and yes, got the red error message.

    We’re using mail(), not SMTP. Thoughts, suggestions, ideas?

    Thanks in advance.

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  • Thread Starter Brian

    (@bwold)

    6 years, 9 months ago

    Follow up: I got the form working. Two problems, as it turned out.

    1) I was using BCC in the additional headers to send to a GMail address. Looks like that means that the deliverability of the form entry is dependent on both the primary TO email as well as any others, such as my BCC. So removing the BCC address got the form working.

    2) It turns out that something in the HTML body of the email that was being sent was getting rejected (presumably by GMail servers — see #1 above). If I switched the form email out of HTML content type, it worked with the BCC intact; then once I cleaned up the HTML, it’s now working in HTML mode with the BCC intact.

    Recently, we switched the site to HTTPS, but the email HTML referenced an image (logo) using HTTP. I’m guessing now, but apparently, something in GMail servers reads the incoming email body… and if it doesn’t like some part of it, the email is rejected. Once I switched the image ref to https:// — no more errors.

    Hope this helps someone else.

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