Mail Center Network

Web Mail

1

Web Mail

2

Web Mail

N

POP/

Outbound

SMTP

1

POP/

Outbound

SMTP

2

POP/

Outbound

SMTP

N

Mail Storage

1

Mail Storage

2

Mail Storage

N

Oracle

Database

Mail

Admin

Mail

Admin

Inbound

SMTP

Inbound

SMTP

Load balancer/

proxy

Internet

Private Net

Mail Net

Load balancer/

proxy

MTA Traffic

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