An invalid character was found in the mail header postal

A technical issue!

When you see an error message saying "an invalid character was found in the mail header postal", it usually means that there's a problem with the formatting or content of the email header.

Here are a few possible causes:

  1. Malformed email address: The email address in the "From" or "To" field might contain special characters that are not allowed in email addresses. For example, an email address with a space or a special character like @, #, or % might cause this error.
  2. Non-ASCII characters: If the email contains non-ASCII characters, such as accented letters or non-Latin characters, they might not be properly encoded, leading to this error.
  3. Invalid header syntax: The email header might contain invalid syntax, such as a missing colon (:) or a malformed field name.
  4. Email client or server issue: The error could be caused by a problem with the email client or server, such as a misconfigured email client or a server-side issue.

To resolve this issue, you can try the following:

  1. Check the email address: Verify that the email address is correctly formatted and does not contain any special characters.
  2. Use a different email client: Try sending the email using a different email client to see if the issue persists.
  3. Check the email header: Inspect the email header to see if there are any unusual characters or syntax errors.
  4. Contact your email provider: If you're using a web-based email service, contact their support team to see if they can help resolve the issue.

If none of these solutions work, please provide more details about the error message, including the exact text and any relevant context, and I'll do my best to help you troubleshoot the issue!