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 decide 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...

Do I need a Dedicated IP?

A dedicated IP are required for senders above 50K emails a month. The dedicated IP isolates from other mailers in the network and allows the user to build a good sending reputation. Dedicated IP is desirable for Long Term Email Marketing efforts.

Do you provide access to SMTP relay

Direct Access to SMTP relay is not allowed via Email client. All Emails are delivered via MailRush.io Web application.

I cannot connect to my SMTP Account. What could be the problem?

Direct SMTP access is restricted. You must use MailRush.io Web interface to send your emails. Optionally you may use our API to send emails via HTTPS Post.

What is SMTP

The World Wide Web functions based on some set protocols which are set of specialized rules of networking software and guideline allowing a computer to...

What is PTR or Reverse DNS

Reverse DNS is a DNS query that translate the hostname or a fully quilified domain from an IPv4 address.

What is IP Reputation?

IP Reputation is a metric that Email Service Providers use to rank the email server senders IP in order to forward or not a email to a destination. An IP can have a meustral, poor, bad or good reputation. IP Reputation is gained through time and it is based in its sending behavior.

How do MailRush.io Email Marketing Consulting Services work?

By bundling your MailRush.io account with our Email Marketing Consulting Service you get One-on-One calls with email deliverability experts that will continusly audit your campaigns, providing extended data and assisting you creatin g your Email Marketing Campaigns avoiding common mistakes and using Best Practices.

How many emails can I send per day?

MailRush.io system adjust 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. Witht the suggested frequency feature a user can specify even slower frequency depending on their needs.

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. For generic domains there is no hard limit.

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 is a requirement to send using MailRush.io. We have writen the following article to give you detailed information on how to pass the SPF check.

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 MailRush.io system.

How to Clean Your Email List In

You can easily clean your emailing list by sending with MailRush.io. For this we have created a detailed article about the topic called: How to Clean Your Email List In MailRush.io