# Mailcow Post-Installation Steps

Access Mailcow admin: **https://mail.web.orbishosting.com**  
Default login: `admin` / `moohoo`

---

## Step 1: Change Admin Password

**Configuration → Access → Administrator accounts → admin → Edit**

---

## Step 2: Add Your Domain

**Configuration → Mail Setup → Domains → Add domain**

| Field | Value |
|-------|-------|
| Domain | `web.orbishosting.com` |
| Description | Orbis Hosting Mail |
| Max. aliases | 400 |
| Max. mailboxes | 10 (adjust as needed) |
| Max. quota | 10240 MB |
| Default mailbox quota | 1024 MB |
| Active | On |

---

## Step 3: Create Mailboxes

**Configuration → Mail Setup → Mailboxes → Add mailbox**

Suggested mailboxes to create:
- `admin@web.orbishosting.com`
- `postmaster@web.orbishosting.com` (required for RFC compliance)
- `abuse@web.orbishosting.com` (required for RFC compliance)
- Your personal email address

---

## Step 4: Get DKIM Key

**Configuration → Domains → web.orbishosting.com → DKIM**

Click **Generate** if no key exists, then copy the TXT record and add it to your DNS:
```
dkim._domainkey.web.orbishosting.com  TXT  "v=DKIM1; k=rsa; p=YOURKEY..."
```

---

## Step 5: Verify Mail Configuration

**Configuration → Diagnostics** — Run all checks and ensure green on:
- DNS MX record
- SPF record
- DMARC record
- Reverse DNS (PTR)
- DKIM

---

## Step 6: Configure Mail Clients

Use these settings for Outlook, Thunderbird, Apple Mail, etc.:

### Incoming Mail (IMAP)
| Setting | Value |
|---------|-------|
| Server | `mail.web.orbishosting.com` |
| Port | `993` |
| Security | SSL/TLS |
| Username | full email address (e.g., user@web.orbishosting.com) |

### Outgoing Mail (SMTP)
| Setting | Value |
|---------|-------|
| Server | `mail.web.orbishosting.com` |
| Port | `587` |
| Security | STARTTLS |
| Authentication | Normal password |
| Username | full email address |

---

## Step 7: Test Email Deliverability

1. Send a test email from your new mailbox to an external address (Gmail, Outlook)
2. Check spam score: https://www.mail-tester.com
3. Check blacklists: https://mxtoolbox.com/blacklists.aspx

**Target score:** 10/10 on mail-tester.com

Common issues if score is low:
- Missing PTR record → contact ISP
- Missing DKIM → check Step 4
- Missing DMARC → check dns-records.md
- On a residential ISP blacklist → consider a mail relay (SendGrid, Mailgun) for outbound

---

## Mailcow Useful Commands

```bash
ssh ubuntu@10.48.200.82
cd /opt/mailcow-dockerized

# View all container status
sudo docker compose ps

# View logs for specific container
sudo docker compose logs -f postfix-mailcow
sudo docker compose logs -f dovecot-mailcow
sudo docker compose logs -f acme-mailcow

# Restart all Mailcow containers
sudo docker compose restart

# Update Mailcow
sudo docker compose pull
sudo docker compose up -d

# Update Mailcow (official method)
sudo ./update.sh
```