Guide — Outlook IMAP/SMTP ke Mailcow

Untuk: PC user yang memakai support@geonet.co.id (atau mailbox @geonet.co.id lain). Server: Mailcow sync.geonet.co.id — bukan mail.geonet.co.id (cPanel).

Pengaturan

Setting	Nilai
Email / Username	`support@geonet.co.id`
Password	Password Active Directory (Windows login `support` / `support@geonet.co.id`)
Incoming	IMAP
Server IMAP	`sync.geonet.co.id`
Port IMAP	`993`
Enkripsi IMAP	SSL/TLS
Outgoing	SMTP
Server SMTP	`sync.geonet.co.id`
Port SMTP	`587` (STARTTLS) — bukan SSL/TLS di port 587
Alternatif SMTP	Port `465` + SSL/TLS (jika 587 gagal)
Auth SMTP	Ya — sama dengan IMAP

support@ pakai authsource ldap (grup AD Mail-Users, atribut mail). Inbound tetap via fetchmail POP3 dari hosting.

Outlook (Windows)

File → Add Account → Advanced setup → IMAP
Incoming: sync.geonet.co.id, port 993, SSL/TLS
Outgoing: sync.geonet.co.id, port 587, STARTTLS
More settings → Outgoing Server: centang SMTP requires authentication, use same as incoming
Hapus akun lama jika masih mail.geonet.co.id

Thunderbird

Manual config: IMAP 993 SSL, SMTP 587 STARTTLS, Normal password, username email penuh.

Alur email masuk (transisi)

Internet → MX cPanel → inbox cPanel
              ↓ fetchmail POP3 (~2 menit)
         inbox Mailcow → Outlook (IMAP)

User tidak perlu setting POP3 di PC — hanya IMAP ke Mailcow.

Troubleshooting

Gejala	Cek
Auth gagal	Password AD (bukan password Mailcow lama); pastikan user di grup `Mail-Users`
SMTP encryption error	Port 587 harus STARTTLS (bukan SSL/TLS). Port 465 pakai SSL/TLS
Cert error / encryption failed	Pastikan cert Let's Encrypt terpasang (`scripts/sync-ssl-from-nginx.sh`)
Email tidak masuk	MX masih cPanel — cek fetchmail: `tail /var/log/fetchmail-support.log`
Port blocked	`Test-NetConnection sync.geonet.co.id -Port 993`

Detail server: ../server.md, ../issues.md.

Verifikasi koneksi (PowerShell)

Test-NetConnection sync.geonet.co.id -Port 993
Test-NetConnection sync.geonet.co.id -Port 587

Keduanya harus TcpTestSucceeded : True.

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