Support » Plugin: Fast Secure Contact Form » Mail delivery failed

  • Resolved franceslibrarian


    I’m having a persistent problem with mail not being delivered when the user’s mail service is a free one like Gmail or Yahoo. After working hard with our web host, it appears to boil down to a DMARC issue and the way the “Reply-to” field is auto-filled with the user’s email address. I’ve triple checked that the settings on our forms match the recommendations on this page: The issue seems to be with this paragraph:

    “The email you receive will appear to be from your site email address, but because the email header “Reply-to” is set as the form user’s email address. You should be able to just hit reply and send email back to the real sender. Also you should see the sender’s email address in the message content. So it is still possible to send mail to that address if the “Reply-to” is somehow ignored by your email program.”

    Our host says “The “FROM” and the “Reply-To” fields can not be set to those free mail providers because they did not come from them. If the plugin continues to do this, then you should seek another one that correctly adheres to those standards.”

    Sure enough, if I fill out one of our forms (e.g. using a not-free email account, it delivers correctly to the To: addresses and the Bcc: addresses I’ve entered. If I fill out one of our forms using a Gmail account, I get an error message along these lines:

    A message that you sent could not be delivered to one or more of its
    recipients. This is a permanent error. The following address(es) failed:
    host []
    SMTP error from remote mail server after end of data:
    550 5.7.1 [JR] Blocked. See

    Any solutions out there? Thanks so much.

Viewing 7 replies - 1 through 7 (of 7 total)
  • Hi, you might like to try the following plugin. This plugin sometimes helps when you run into issues like yours.


    Thanks! I’m traveling, will try it as soon as possible.

    Unfortunately, no go. I ended up switching to Contact Form 7, which allowed me to edit the “Reply-to” field.

    Sorry to hear you could not get it to work. I am also happy you found an alternative plugin.

    Can you mark this support thread as resolved.

    Thank you

    Will do, thanks.

    Hi, I am having the same issue and I av using Contact Forms 7.
    What did you change the reply-to address to, to make it work?


    Hi Tracey,

    I changed the reply-to address to an admin email address on our domain. However, you do have to be careful when replying to someone’s query. You need to manually input their email address in the “to” field, otherwise you send your reply right back to yourself.

    Best wishes,

Viewing 7 replies - 1 through 7 (of 7 total)
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