HuBuCo Pricing, Features, Reviews & Comparison of Alternatives


Email verification API & bulk email verification service

4.45/5 (58 reviews)

HuBuCo overview

HuBuCo is an email verification system with real time API and file upload, which offers tools for verifying emails individually or in bulk, in order to ensure that email communications such as newsletters or marketing content are not flagged as spam when sending to subscribed customers. The cloud-based tool is designed to help businesses of all types to protect their email reputation and avoid message bouncing, in order to optimize email delivery rates.

Businesses can use HuBuCo to verify emails in real time using the verification API and bulk email verification service, in order to ensure that emails are successfully delivered to subscribers. HuBuCo aims to reduce both hard and soft email bounces by carrying out tasks including the removal of duplicate email addresses, checking of email syntaxes, assessment of risk, checking of MX records, and SMTP deep level verification. Businesses can verify their email subscriber lists within the HuBuCo platform with automatic SMTP to recipient servers to ensure the email accounts still exist, and detection of catch-all servers and temporary email addresses.

HuBuCo facilitates the upload of contact and subscriber email lists in TXT, CSV, or XLSX file format, and verification results can be downloaded as a CSV file. Users can upload data manually, or connect with the HuBuCo API to verify email addresses in real time.


Starting from
Pricing options
Value for money
View Pricing Plans


Business size



United States, Asia, Australia, Brazil, Canada and 9 other markets, China, Europe, Germany, India, Japan, Latin America, Mexico, Middle-East and Africa, United Kingdom

Supported languages

Upload emails for verification into HuBuCo's bulk email verification tool

HuBuCo reviews

Value for money
Ease of use
Customer support
Kevin Andrews

Great service and tremendous value

Used other for 1-2 years
Reviewed 2018-10-09
Review Source: Capterra

I had an email list for my newsletter which was in terrible shape. We hadn't sent out a newsletter in many months, and I found out that the person handling this task before me had not been processing bounces. In addition, there had been no double opt-in for sign-up and I could tell just from the names of some subscribers that they were spam bots. When I had tried to send out a newsletter, there were immediately a lot of bounces and our reputation score plummeted so quickly that our mailing partner stopped us from further sending. I checked into various email verification programs, and even purchased a few to try. Most were prohibitively expensive, and in addition, the results were not helpful. We were getting way too many results of email addresses that returned as unknown. I purchased a small quantity of verifications from HuBuCo, and was rather skeptical because the pricing was much lower than others we looked at. However, the results came back quickly and nearly all of the returned with a clear result. Very few "unknown" results. As a result, we were able to quickly clean our list of over 200,000 email addresses. I sent out a newsletter to the freshly HuBuCo-verified emails with almost zero bounces. With a clean list, our reputation score quickly increased, and after a few mailings was up to 99/100. As our list became more engaged, we saw our delivery rate increase. All of which translated into a fantastic response from our list!*Competitive price *Fast service *Accurate results

Read the full review


Great Tool For Keeping Bounces Down

Used daily for 1-2 years
Reviewed 2018-09-28
Review Source: Capterra

Our application sends email invitations and notifications, and to both improve our UX and UI, and help reduce bounces and keep our sending reputation high, we use HuBuCo's API to validate email addresses.The API. The daily free 100 credits. The overall quality of the results.

Read the full review

Lisa Broadway Chow

HuBuCo keeps my email providers happy

Used other for 1-2 years
Reviewed 2018-10-09
Review Source: Capterra

We sometimes get old lists from our system people and are asked to quickly turn email campaigns around. This service is a great first cleanse. The software is inexpensive and very easy to use, very quick. The online support is super intuitive and the dashboard is pretty easy to navigate once you get used to it. The real value is that we are able to validate large lists quickly and ensure we don't have email campaign delivery impacted. They offer free validations for a trial, which is how I was able to ascertain the quality of their service.

Read the full review

Kirsten Wheeler

So easy and so cheap

Used monthly for 6-12 months
Reviewed 2018-09-29
Review Source: Capterra

HuBuCo saved our project - I needed to send out an email to over 7000 email address from a database that was over 3 years old (and has been sitting in the archive all that time) and to avoid any spamming issues, we need to clean this list ASAP. Thanks to HuBuCo, it was easy to doI love how easy it is to use this service. There are a few options to upload email addresses including uploading a .txt file, manually entering addresses or using their API. The system verifies everything for you and all you need to do it hit the start button and let it do its thing. Another great benefit is that you are not charged for any emails HuBuCo is unable to verify (as valid or invalid) which makes it great on the pocket to - you only pay for the emails verified. The results are also easy to download and you have a choice of download all or only those valid email address. ADDED BONUS - Free 50 Searches Every Day

Read the full review

raju r

very good

Used daily for 2+ years
Reviewed 2018-10-06
Review Source: Capterra

very goodvery good. hubuco is a very important service

Read the full review

HuBuCo pricing

Starting from
Pricing options
Free trial
View Pricing Plans

HuBuCo offers both one time purchases and monthly subscriptions.

1 Bulk Credit: $7.05 one time payment

Turbo plan: $15/month for the first 3 months, then $25/month after. Includes 15,000 emails/month and 1,500 bonus bulk credits.

Rocket plan: $19.80/month for the first 3 months, then $33/month after. Includes 15,000 emails/month and 5,000 bonus bulk credits.

Contact HuBuCo for more information on pricing.

HuBuCo features


Activity Dashboard (64 other apps)
Automatic Notifications (51 other apps)
CRM Integration (60 other apps)
Call Monitoring (52 other apps)
Call Recording (81 other apps)
Call Reporting (50 other apps)
Call Routing (62 other apps)
Call Transfer (58 other apps)
Caller ID (58 other apps)
Chat (72 other apps)
Conferencing (69 other apps)
Instant Messaging (55 other apps)
Live / Video Conferencing (50 other apps)
Monitoring (51 other apps)
Receiving (53 other apps)
Reporting & Statistics (56 other apps)
SMS Integration (49 other apps)
Third Party Integration (77 other apps)
Voice Mail (50 other apps)

Additional information for HuBuCo

Key features of HuBuCo

  • Domain check
  • Syntax check
  • Mail server validation
  • Catch-all server detection
  • Disposable email detection
  • Single email verification
  • Bulk email verification
  • Bounce tracking
  • Email tracking
  • API
  • Email integration
  • Bulk send
  • Data verification
  • Import management
  • File transfer
  • Anti spam
  • Duplicate detection
  • Subscriber management
  • Contact database
  • Contact management
View All Features


Verify email lists via real time API verification or bulk email verification. Program the HuBuCo API into business systems to verify email addresses in real time.

Upload email lists for verification in TXT, CSV, or XLSX file format, and download verified results in CSV format.

Reduce both hard and soft bounces by verifying email subscriber lists and checking for catch-all servers, temporary email addresses, or addresses that no longer exist.

Avoid being mistaken for a spam account by ensuring that email lists are verified at least every 3 months.

Verify emails in bulk, checking for duplicate emails, email syntaxes, risks, MX records, and more, and carry out SMTP deep level verification.