
Gmail
Thunderbird
ProtonMail
Zoho Mail
Mailbird
eM Client
Google Calendar
Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Which is more popular?
Based on our record, Microsoft Outlook seems to be more popular. It has been mentioned 11 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | outlook.live.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Microsoft Outlook yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Microsoft Outlook 2019 - Full Tutorial for Beginners [+General Overview]
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Microsoft Outlook and ZIP Code API. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

i love this apps
Security Issues. Even though Microsoft takes security seriously, there have been significant issues that have left Outlook users vulnerable. For example, a recent critical Microsoft Outlook security vulnerability...
Also, in 1997, Microsoft acquired Hotmail, one of the first free, web-based email services. Hotmail became MSN Hotmail, then Windows Live Hotmail, and finally Outlook.com. Outlook.com is not a desktop email client but...
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Recommendations tracked on public social media and blogs since March 2021.

It seems like there might be an issue for the UofG site that had the direct link to GryphMail. However, this is not the only way to access your school email. You can go to Outlook and sign in through there with you @uoguelph.ca address —... Source: over 3 years ago
If you've paid your confirmation deposit your email should be created (it can sometimes take 2-3 days). If you've activated your identikey you should be able to log in at https://outlook.live.com/owa/. Source: over 3 years ago
In** 2013** the company I worked for decided that everyone needed to move to Microsoft. We all started to use Outlook and the rest of the Office suite. I really liked the Outlook calendar on the desktop as I could schedule tasks and... Source: almost 4 years ago
Tracking ZIP Code API since May 2026.
When comparing Microsoft Outlook and ZIP Code API, you can also consider the following products.

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Secure email with absolutely no compromises. Get your free encrypted email account today.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Microsoft Outlook or ZIP Code API: