📌 Purpose & Quick Summary

To ensure bulletproof email delivery and protect against inbound spam, BoostonCP includes built-in DNS Diagnostics (real-time verification of MX, SPF, DKIM, and DMARC records), customizable SpamAssassin Filtering, and comprehensive Mail Client Configuration instructions for Outlook, Thunderbird, iOS, and Android.

BoostonCP Email DNS Diagnostics

Figure 16.3: Automated DNS diagnostics testing MX, SPF, DKIM, and DMARC deliverability records.

🖥️ Interface Tour & Elements

  1. DNS Diagnostics Tab: 1-click analyzer that checks your domain's live DNS records for MX points, SPF authorization, 2048-bit DKIM cryptographic keys, and DMARC alignment.
  2. Spam Filter Tab: SpamAssassin score threshold slider (1 = aggressive, 5 = balanced, 10 = relaxed) and automated spam folder routing.
  3. Client Configuration Tab: Complete connection parameters for IMAP, POP3, and SMTP with SSL/TLS encryption.
BoostonCP Mail Client Configuration

Figure 16.4: Mail client connectivity instructions for configuring desktop and mobile email applications.

🛠️ Step-by-Step Instructions

Step 1: Auditing Email Deliverability Records

  1. In the Email Accounts page, click the DNS Diagnostics tab.
  2. Select your domain and click Analyze DNS Records.
  3. Verify that MX, SPF, and DKIM display green checkmarks. If any record shows red, copy the suggested DNS record and paste it into the DNS Zone Editor.

Step 2: Configuring Outlook or Mobile Devices

  1. In the Connectivity tab, note the secure connection settings:
    • Incoming Server: mail.yourdomain.com (IMAP Port: 993, SSL/TLS).
    • Outgoing Server: mail.yourdomain.com (SMTP Port: 465, SSL/TLS).
    • Username: Your full email address ([email protected]).
    • Authentication: Required for Outgoing SMTP (Same as Incoming).
  2. Enter these settings into Apple Mail, Microsoft Outlook, or Android Mail.

⚙️ Complete Field & Parameter Reference Table

Protocol Secure Port Encryption Type Authentication
IMAP (Incoming) 993 SSL / TLS Full Email + Password
POP3 (Incoming) 995 SSL / TLS Full Email + Password
SMTP (Outgoing) 465 (or 587) SSL / TLS Full Email + Password
Spam Threshold Default: 5.0 Lower = Stricter Identifies and flags spam headers automatically.

❓ Troubleshooting & Common Errors

1. Outlook Error: "Cannot connect to outgoing server (SMTP)"

  • Cause: Some ISPs block Port 25 or Port 587.
  • Solution: Switch your outgoing SMTP port to Port 465 with SSL/TLS encryption enabled in your email client.