Discover Mailmeteor, the best alternative to Gmass

Looking for a Gmass alternative? you’ve found it with Mailmeteor.

There are many mail merge add-ons for Gmail available, this quick read article will allow you to pick the best mail merge extension.
Gmass is an email marketing plugin for Gmail. offers a great Gmail add-on, however the experience may lack of simplicity and the price is overall quite expensive. A Gmass footer is included by default in the free version of Gmass, which may denature your email campaigns.
Mailmeteor is the best alternative to Gmass. In its free version, Mailmeteor offers twice more free quota than Gmass (100 emails with Mailmeteor vs 50 with Gmass). Also, Mailmeteor has more affordable pricing options, for individuals and companies, which you can find in the table below.
About Gmass privacy: since Gmass requires access to emails you may wonder what happens with your data. Mailmeteor respects privacy by design: it does not have any access to your emails, contrary to Gmass which can read, modify or delete your emails.

Mailmeteor VS Gmass

Mailmeteor Gmass
Free quota 100 emails / day 50 emails / day
Privacy Mailmeteor does not require access to emails. Gmass requires read, modify, delete access to your emails
Pricing for individuals $29 per year $129 per year (5 times more expensive)
Pricing for teams
(10 people)
$189 per year $1,595 per year (8 times more!)

Get Mailmeteor

Start free, upgrade whenever you need.

Get up and running for free
  • 100 mails per day
  • Emails tracking
  • Preview emails
Complete version
Mailmeteor Premium
Unlock full sending capacity
  • Up to 1500 mails per day
  • Realtime emails tracking
  • Preview emails
  • Add attachments files
  • Send with email alias
  • Custom support expertise

300,000 professionals trust Mailmeteor

Companies & organizations from all over the world trust Mailmeteor. Read all reviews.


You can send up to 100 emails a day with Mailmeteor for free. We've doubled the free quota compared to existing mail merge solutions. If you want to benefit from premium features and unlock your sending limit, you can upgrade your account on our paid plans.
Mailmeteor lets you send email campaigns from your Gmail inbox, contrary to email marketing softwares - like Mailchimp or Sendgrid. For your recipients, it is as if you actually wrote each and every emails. It means better email deliverability, less spams and way better opening rates!

You can also compare Mailmeteor to other mail merge extensions for Gmail - like Yet another mail merge or Gmass. Mailmeteor is different in three ways:
  • Privacy first - Mailmeteor never requires access to your email data while other add-ons (like YAMM or Gmass) can read, modify and delete your emails.
  • Stellar user experience - Mailmeteor is built to make mail merge easier. Send your first campaign in a few simple steps.
  • Affordable pricing - starting from $2.5 a month per user. Simple pricing that works at any scale.
Mailmeteor directly sends emails from your Gmail account, it prevents your email from falling into spams. However, please be sure to abide by Google anti-spam policies:
  • Warm-up your Gmail account. If your account is new, we recommend sending emails to a small list of recipients at first (less than 50 emails).
  • Make sure your contact list is clean. If your campaigns have a lot of bounced or undelivered emails, Google will detect that your database is outdated or not legitimate. We strongly recommended you to keep your database as clean as possible. If we detect spamming behavior, we will have to block your account.
  • Insert unsubscribe links in your emails if you are running marketing campaigns.
The only limit is your imagination! You can personalize every part of the email, from subject to content. Some examples:
  • Personalized email subject. For example: "Partnership between and Mailmeteor?"
  • Personalized greetings and recipients name like "Ghostbusters, whatya want?"
  • Personalized content: you can add personal notes, custom URLs, postscriptum...
By design, your data stays at all times on your Google Spreadsheet. Here's all the data we need in order to make Mailmeteor work:
  • Your email address - to know who you are
  • If you are a paying customer, your name to identify payment
  • Campaigns sent metadata (number of emails, date of sending, sheet's name - that's all)
  • Emails sent metadata (date of sending, opens and clicks events - that's all again)
Mailmeteor complies with the French Data Protection Laws and the European General Data Protection Regulation 2016/679 (GDPR). You have a right of access, correction and removal of your personal data which you may exercise by sending us a support ticket directly on the support chat or by sending an email at
Sure you can. Add a column in your sheet with "cc" or "bcc" as header. Put emails in the cells, if you have several recipients in CC or BCC, separate emails with comma. Video tutorial available here.
Contact us, we'll be glad to help! Our team speaks English, French or Spanish. We are located in the Central European Summer Time zone, we take a few hours to answer your message depending the time of the day. Usually we answer right away or under 24 hours.
A meteor is small rocky or metal object from space that enters the Earth’s atmosphere and vaporizes. It is shooting star. Mailmeteor project was born during the Geminids, a meteor shower near the Gemini constellation. Meteors are debris from comets or asteroids, bodies of ice, rock and dust that orbits the sun and can be miles of diameter. Learn more on NASA's blog about these fascinating objects. Ready for the mail meteor shower?