Dkim 2048 key added but another new issue duplicate headers

[vtmworld]

The DKIM signature of your message is:

v=1;
a=rsa-sha256;
c=relaxed/relaxed;
d=bolthires.com;
s=default;
t=1749101273;
h=from:from:reply-to:subject:subject:date:date:message-id:message-id:to:to:cc:mime-version:mime-version:content-type:content-type:content-transfer-encoding:content-transfer-encoding;
bh=l+zqqCaCeZL0FleAxHGVwhLGHMDcBTXkSA5KY/LPeJw=;
b=eznloAerOL1XPvkV+j7K9YXm6Vxj7bfkuRZRm4k7xrRkLAzfo+wIFL5s48ikZHup7zPRPngEOyRAuXqHGF4UcZrij7vVWD5iwmzYDR4gpQsStBZdHdbhQvj8iX1WAOAkLqRv7i7PAbFMzeWPQed63mKGcSKCUCYiavtcvTgPXf5vh3EF+3qldBrdnLcU3RW5lNaMTyl5CycEZctm2wekyhB9oSqfbSEu/Cpc8BExZOSwdZ2FKB5UEPgBb+f8Z5iWHexqSZsLzzu5sJCWUFgE+2Dp04NLvBvrtlxLjZ0JvbInDqi0BfG4hiOOMnnM0hgWMmH0HYxBApuUmRLprZkYxw==

Your public key is:

"v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkMT/SsSAEo64HcbeLrQs9IoPAbrpI7CT9nBKRayVIYJMO0aT9HOJUr5GrpkIYl3vwb0g3RE9l7HFwbQMDRczgnydzo/ZtRibklItRP+6QOhHu8iQmWz8cFS8lK4/LOa0TAvkGn94jT0xqmR7Y/jSCBIgxGhYrSLPdfGz8MDVY9XT0b2Pl0WmRK011a0Tm7MZoLKuYjAmbLrNRj19I+k5XBLzwWAKpB3hhLzTC8mWagNPnOgDkjzqkkDtusRp6DOW9iAAUNwzsXWTAAr8CMuq/ZM6NNIWxuGW25en7d6ZHcj8DCFTl0YfvQcfv1nNe3rH35nKKEZ/8kX2yj9+mP/vUwIDAQAB" Key length: 2048bits

Your DKIM signature is not valid

[vtmworld]

h:from:from

[dreambladeflag]

Yes, I've noticed this too. However, it's currently unclear whether this directly impacts email deliverability rates. The root cause is still under investigation.

[vtmworld]

due to this dkim failed getting in gmail , so sort out this 2048 key and duplicate from in header,

i tried with cursor for this issue

// Build email message with headers headerString := fmt.Sprintf("From: %s\r\n", from) + fmt.Sprintf("To: %s\r\n", strings.Join(recipients, ",")) + fmt.Sprintf("Subject: %s\r\n", message.MailTitle()) + "MIME-Version: 1.0\r\n" + "Content-Transfer-Encoding: quoted-printable\r\n" + "X-Mailer: BillionMail\r\n" + message.MailHeader() + "\r\n" + message.MailText() + "\r\n"

replaced with

// Filter out standard headers to avoid duplication standardHeaders := map[string]struct{}{ "From": {}, "To": {}, "Subject": {}, "MIME-Version": {}, "Content-Transfer-Encoding": {}, "Content-Type": {}, } filteredHeaders := make(map[string]string) for k, v := range message.Headers { if _, isStandard := standardHeaders[k]; !isStandard { filteredHeaders[k] = v } }

// Build email message with headers headerString := fmt.Sprintf("From: %s\r\n", from) + fmt.Sprintf("To: %s\r\n", strings.Join(recipients, ",")) + fmt.Sprintf("Subject: %s\r\n", message.MailTitle()) + "MIME-Version: 1.0\r\n" + "Content-Transfer-Encoding: quoted-printable\r\n" + "X-Mailer: BillionMail\r\n" for key, value := range filteredHeaders { headerString += fmt.Sprintf("%s: %s\r\n", key, value) } headerString += "\r\n" + message.MailText() + "\r\n"

built this cd /opt/BillionMail/core go build -o billionmail still getting same issue

[marksmenit]

How is it possible to change the length of the key to 2048 bits? The setup created a 1024-bit one.

[vtmworld]

opendkim-genkey -b 2048 -d example.com -s default

After getting key, txt replace in old keys

On Mon, 9 Jun 2025, 11:42 am Marksmen IT, @.***> wrote:

marksmenit left a comment (aaPanel/BillionMail#50) https://github.com/aaPanel/BillionMail/issues/50#issuecomment-2954756405

How is it possible to change the length of the key to 2048 bits? The setup created a 1024-bit one.

— Reply to this email directly, view it on GitHub https://github.com/aaPanel/BillionMail/issues/50#issuecomment-2954756405, or unsubscribe https://github.com/notifications/unsubscribe-auth/BMXQDRBXPDT5OF5QGD7SD3L3CUQVRAVCNFSM6AAAAAB6UPAVGOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDSNJUG42TMNBQGU . You are receiving this because you authored the thread.Message ID: @.***>

[vtmworld]