Knowledge Base

Do you have questions about email marketing and cold outreach? Find comprehensive answers to your questions in our knowledge base.

What is a Blacklist?

Blacklist is a public list of IP addresses that are known to be sending Spam messages. Providers use this list to protect their users from Spam.

How many Emails per hour can I send?

MailRush.io is not about how fast we can deliver Emails. It is about reaching the Inbox. Email frequency is important to avoid getting flagged. MailRush.io automatically decides when an Email will be sent to an specific recipient.

How to Avoid the spam folder when sending Emails

Perfection is a far-fetched word when it comes to email deliverability. You may feel that there are unexplained reasons that make your emails to land in the spam folder.

Do I need a Dedicated IP?

A dedicated IP address gives you complete control over your email sending reputation. It's recommended for high-volume senders and businesses serious about email deliverability.

How many emails can I send per day?

MailRush.io system adjusts its sending Email frequency depending on feedback received by remote providers and for this reason, is not possible to specify the daily amount. Email Frequency could range from one email per second to one every 59 seconds.

What are MailRush.io daily sending limits?

MailRush.io will set a daily sending limits per provider following their guidance in an effort to prevent abusive behavior to the receiving server avoiding spam flags. Outlook daily sending limit is 500 emails a day, Gmail daily sending limit is 1000 emails a day, Yahoo daily sending limit is 1000 emails a day.

Where do I see the unsubscribes?

At the contact section, you can run a filter to get unsubscribe. The filter name is "Status" and from there you can select "unsubscribed".

How to pass the SPF Check?

SPF (Sender Policy Framework) is an email authentication method. You need to add SPF records to your domain's DNS settings to authorize MailRush.io to send emails on your behalf.

Can I use my own Domain Name?

You can use your own domain name in the sending SMTP account with any Dedicated IP Plan. For lower tier plans you can still send using your domain but the account SMTP will be selected by the MailRush.io system.

What happens to unused credit?

MailRush.io plans do not support rollover of unused credit. The system will reset the account to the supported credit for the plan after receiving a subscription renewal.

My account is new, why are the emails sending slow?

There is an automated ramping up of the email volume. When the account is new we will put a tight limit that will be increased every day. This is part of the automated warmup process for the account.

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