Multiple Email Addresses vs Domains

We recommend sending 20 per day for new email accounts and no more than 100/day to keep your inbox from being flagged as spam by Gmail.

Email Limitations

Popular services like Gmail and Outlook recently made changes to curtail the amount of spam that gets sent. As a result, you should send no more than 100 emails per day to reduce likelihood of always ending up in the spam folder or getting blocked completely.

The exception is if you have a long history of being a reputable brand (think at least a small-cap company that has been sending emails for years).

Workarounds

There is an ongoing debate in the community about whether or not this applies per email address (e.g. [email protected]), per email domain (e.g. @gethyperscale.com), or per email subdomain (e.g. @mail.gethyperscale.com)

High-risk solution

Create multiple emails (e.g. [email protected] and [email protected]) for the same domain and send 20-100 per day from each email address.

This can get your entire domain flagged.

This means buying 1 domain and creating multiple email addresses.

Medium-risk solution (most common practice)

Create multiple subdomains (e.g. [email protected] and [email protected]) for the same parent domain and send 20-100 per day from each email subdomain.

This means buying 1 domain, and then creating multiple subdomains with individually verified records.

Low-risk solution

Use multiple domains and send from 1 email address per domain (e.g. [email protected] and [email protected]) send 20-100 per day from each domain.

This means buying multiple domains with individually verified records.

Absolute limits

Even if you create subdomains, there are still absolute limits to be aware of at the overall domain level.

You may only send up to 5,000 emails to personal Gmail accounts within a 24-hour period. This is the total of your domain AND subdomains (e.g. mail.domain.com and domain.com).

Note: On Hyperscale, you generally won't run into this limit issue since we focus on B2B emails (e.g. [email protected]) rather than personal @gmail.com emails.

More details from Google here.

Regardless of which option you choose, it's worth considering warming up your inbox for fresh new emails addresses.