Black Metal Mailboxes for Outside Post Mount - Heavy Duty Medium Box

In this review of the Black Metal Mailboxes for Outside Post Mount, the bottom line is simple: this is a practical, no-nonsense medium-capacity mailbox for homeowners who want durability and easy daily use. It suits those who receive a moderate amount of mail or small packages and want a weatherproof steel solution that looks clean on a front lawn. The single biggest reason to buy is the combination of a roomy 19 x 8.7 x 6.7 in interior and a heavy-duty galvanized steel build that resists corrosion and keeps contents dry.

Key Features

• Generous capacity: The 19 x 8.7 x 6.7 in interior and wide-mouth opening make retrieval effortless and accommodate larger envelopes and thicker mail without bending.
• Durable construction: Heavy-duty galvanized steel minimizes wear and corrosion for long-term outdoor use, reducing the need for frequent replacement.
• Weather-defying finish: The sleek black coating sheds rain and moisture so mail stays dry in wet conditions.
• Seamless build with flag: Precision-folded corners and a red metal flag keep contents protected and provide a clear outgoing-mail signal.
• Easy installation: Pre-drilled holes speed mounting to a standard post, with a simple metal fitting adjustment if the door requires alignment.

Who It's For

This mailbox is aimed at homeowners, renters with yard posts, and small businesses that need a sturdy post-mount mailbox with a medium capacity. It works well for suburban and rural properties where a traditional mailbox complements the landscape but you still expect durability and daily access.

Those who should look elsewhere include people who need a very large parcel locker for frequent package deliveries or customers who require included mounting hardware out of the box, since some buyers report that mounting screws or post brackets are not provided.

Pros & Cons

Pros

• Solid galvanized steel construction offers long-term durability and corrosion resistance.
• Good internal volume and a wide opening make mail retrieval simple and snag-free.
• Attractive matte black finish and thoughtful folding details give a clean, classic appearance.
• Simple installation with pre-drilled holes saves time during setup.

Cons

• Does not include mounting hardware, so buyers must source screws or post brackets separately.
• The mailbox is medium capacity only, so it is not ideal for frequent large parcel deliveries.

Specifications

Brand	RAINHOL
Type	Post-mount mailbox
Material	Galvanized steel
Finish	Black weather-resistant coating
Interior size	19 x 8.7 x 6.7 in
Flag	Red metal outgoing mail flag
Installation	Pre-drilled holes; requires separate mounting hardware

Our Verdict

The Black Metal Mailbox is a sensible, well-built choice for those who want a weatherproof medium-capacity post-mount solution that looks neat and performs reliably. Its galvanized steel build and roomy interior make it good value for homeowners needing durability and easy access, though buyers should plan to get their own mounting hardware if needed.

Frequently Asked Questions

Does the mailbox include mounting hardware?
No. Customers report that mounting hardware is not supplied, so plan to purchase appropriate screws or brackets for your post.

Will it keep mail dry in rain?
Yes. The galvanized steel construction and black weather-resistant coating are designed to resist moisture and protect contents in wet conditions.

Can it fit larger envelopes and small packages?
It fits larger envelopes and many small parcels thanks to the 19 x 8.7 x 6.7 in interior and wide-mouth opening, but it is still a medium-capacity box and not intended for frequent large parcel deliveries.