Connect Mailboxlayer and Google Sheets

Mailboxlayer checks an address for syntax, typos, a working mail server, and whether it comes from a disposable or free provider. FlowMattic runs that check on your Google Sheets rows and writes the parts you care about into columns: a disposable flag for trial sign-ups, a suggested spelling for typos, or a business-email filter for B2B leads.

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6 triggers 20 actions 5 example workflows 1 ready-made template Unlimited runs

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When this happens in Google Sheets6 triggers

Do this in Mailboxlayer1 action

1. TriggerNew Spreadsheet Row

2. ActionVerify Email

When Google Sheets fires New Spreadsheet Row, FlowMattic runs Verify Email in Mailboxlayer with the data from that event.

You build this in the FlowMattic workflow builder on your own site. See the setup steps

Mailboxlayer and Google Sheets workflows you can build

Each one uses only triggers and actions the two integrations ship today, plus FlowMattic's own tools. Where the library has a ready-made template, import it instead of building from scratch.

Flag disposable addresses in a trial sign-up sheet

SaaS teams logging trial users see which ones signed up with a throwaway inbox, so sales does not chase accounts nobody will ever read mail from.

New Spreadsheet RowVerify EmailUpdate Row

Suggest the right spelling for mistyped addresses

When Mailboxlayer spots a likely typo such as gmial.com, the suggestion goes into its own column, so someone can fix the address instead of losing the lead.

New Spreadsheet RowVerify EmailFilterUpdate Cell Data

Move company addresses to a B2B leads tab

A Branch checks the free-provider flag. Work addresses go to the B2B tab for the sales team, personal ones stay in the general list.

New Spreadsheet RowVerify EmailBranchAdd New Row

Recheck the whole list every month

Mailboxes close over time. A monthly Schedule reads all rows, checks each address and refreshes the SMTP result before the next campaign goes out.

ScheduleGet RowsIteratorVerify EmailUpdate Row

Score leads from your own app before logging them

Your app posts new leads to a Webhook. Mailboxlayer returns a quality score, which is stored with the lead so the best ones are called first.

WebhookVerify EmailAdd New Row

Set up: flag disposable sign-ups

By the end, each new row in your sign-up sheet shows whether its address is disposable, free or deliverable.

Add flag columns
Beside the Email column, add columns such as Disposable, Free provider, Mail server and Score.
Connect Mailboxlayer
Under Connects in FlowMattic, add a Mailboxlayer connection with the access key from your Mailboxlayer account.
Start with New Spreadsheet Row
Add a Google Sheets connection, create a workflow with the New Spreadsheet Row trigger on the sign-up sheet and add a test row.
Check and write the flags
Add Mailboxlayer Verify Email with the row's email, then Update Row with the row ID and the flags you want. Test and switch it on.

From Google Sheets	To Google Sheets
Email column	Mailboxlayer: email
Disposable flag	Disposable
Free provider flag	Free provider
SMTP check	Mail server
Score	Score
Did you mean	Suggestion

Triggers and actions in this pair

A trigger starts a workflow. An action is something FlowMattic does in the app as a step.

Good to know

A workflow here starts from a sheet trigger, a Schedule or a Webhook, then asks Mailboxlayer to check the address.
Each check counts against your Mailboxlayer plan's monthly requests. Skip rows that already have a score when you recheck a list.
The result fields shown in the mapping are typical of Mailboxlayer's response. Test one address and use the fields you see in the captured data.

Mailboxlayer

Integration page

Actions (1)

Verify EmailVerify a single email address

Google Sheets

Integration page

Triggers (6)

New Spreadsheet RowTrigger when a new row is added to the spreadsheet
New Or Updated Spreadsheet RowTrigger when a row is updated in the spreadsheet
Deleted Spreadsheet RowTrigger when a row is deleted from the spreadsheet
Update Cell DataTrigger when any cell is updated in the spreadsheet
Update Specific Cell DataTrigger when a specific cell is updated in the spreadsheet
Update Specific Column ValueTrigger when a specific column value is updated in the spreadsheet

Actions (19)

Add New RowAdd a new row with mapped data
Update RowUpdate existing row in specific spreadsheet with mapped data
Delete RowDelete row by ID in specific spreadsheet
Clear Row DataClear data or row by ID in specific spreadsheet
Lookup Row DataSearch for data in specific spreadsheet
Get Cell DataGet data for particular cell in specific spreadsheet
Update Cell DataUpdate data for particular cell in specific spreadsheet
Get Row CountGet total number of rows in specific spreadsheet
Get Row DataGet rows data from the sheet based on specified range
Create Spreadsheet ColumnCreate a new column in specific spreadsheet
Create New SheetCreate a new sheet in specific spreadsheet
Import CSV or JSON to Existing SheetImport CSV or JSON data to existing sheet in specific spreadsheet
Copy SheetCopy a sheet to another or within the same spreadsheet
Get RowsRetrieve rows in JSON format for use with Iterator
Export sheet to CSVExport the selected sheet to CSV format and save to WordPress Media Library
Export Sheet to ExcelExport the spreadsheet to Excel (.xlsx) format and save to WordPress Media Library
Export Sheet to PDFExport the spreadsheet to PDF format and save to WordPress Media Library
Export Sheet to OpenDocumentExport the spreadsheet to OpenDocument (.ods) format and save to WordPress Media Library
Export Sheet to TSVExport the selected sheet to TSV format and save to WordPress Media Library

Why run this pair with FlowMattic

Mailboxlayer and Google Sheets connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.

Addresses do not pass a middleman

Rows go from Google Sheets to Mailboxlayer and back through your WordPress server, not through another automation company.

Monthly rechecks without a task bill

FlowMattic runs are unlimited, so looping over the full list every month costs only your Mailboxlayer requests.

Flags you can sort by

Disposable, free and score values in their own columns let you filter the sheet for exactly the addresses a campaign should use.

Common questions

How do I check email addresses in Google Sheets with Mailboxlayer?

Start a workflow with the Google Sheets New Spreadsheet Row trigger, add Mailboxlayer Verify Email with the email column, then use Update Row to write the flags and score back to that row.

Can I block disposable emails from my trial list?

Yes. Check the disposable flag with a Filter or Router after Verify Email, then mark the row, move it to another tab or remove it with Delete Row.

Does Mailboxlayer fix typos?

It suggests a likely correction when it spots a typo in the domain. The workflow can write that suggestion to a column, but changing the address is left to you.

Can I tell personal emails from business ones?

Yes. Mailboxlayer flags free providers such as webmail services. Branch on that flag to send company addresses to a separate tab or sheet.

Did not find your answer? You can browse the help center or ask us directly.

Start automating Mailboxlayer and Google Sheets

Install FlowMattic, connect both accounts and import a template. Every run stays on your own server.

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Reviewed 27 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. Mailboxlayer integration 1.0, Google Sheets integration 2.2.4.