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The 5 Best Cold Email Infrastructure Providers (Hands-On ...

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  1. If you aren’t quite familiar with cold email infrastructure providers, they’re a new type of service you can use to send high volumes of outreach emails without using Google, Outlook, and the rest. Each cold email infrastructure service is basically like a mini email provider — where you can spin up a ton of mailboxes and send through their private sending servers and IP addresses. The services also aim to make things faster for you, streamlining everything from buying new domains to creating mailboxes to setting up authentication protocols.

    In Email tools and sequencers

  2. Platform integrations. You will be able to use your accounts at any email sending platform where you can use SMTP email accounts. Some cold email infrastructure platforms may offer other features, like warmup, unified inboxes, and email verification. But by and large, most will have that same standard set of features.

    In Email tools and sequencers

  3. But before I dive into my picks… If you aren’t quite familiar with cold email infrastructure providers, they’re a new type of service you can use to send high volumes of outreach emails without using Google, Outlook, and the rest. Each cold email infrastructure service is basically like a mini email provider — where you can spin up a ton of mailboxes and send through their private sending servers and IP addresses.

    In Outbound mailbox provider selection

  4. Here are the things you’ll find at essentially every cold email infrastructure provider. Dedicated sending servers. Instead of sending through a major email provider like Google or Outlook, these services have their own complete sending architecture. (Or they’re licensing it from someone else; the best services will have their own.) Dedicated IP addresses. These services have their own pool of IP addresses. You’ll either share IPs with others or get your own dedicated ones.

    In Outbound mailbox provider selection

  5. Dedicated sending servers. Instead of sending through a major email provider like Google or Outlook, these services have their own complete sending architecture. (Or they’re licensing it from someone else; the best services will have their own.) Dedicated IP addresses. These services have their own pool of IP addresses. You’ll either share IPs with others or get your own dedicated ones. Domain setup. Most services will have you register your domains through them to make setup even simpler. If they don’t offer domains, you’ll be able to bring over your own.

    In Outbound mailbox provider selection

  6. Dedicated IP addresses. These services have their own pool of IP addresses. You’ll either share IPs with others or get your own dedicated ones. Domain setup. Most services will have you register your domains through them to make setup even simpler. If they don’t offer domains, you’ll be able to bring over your own. Mailbox setup. The infrastructure services create mailboxes for you, ideally quickly and at a high volume.

    In Outbound mailbox provider selection

  7. Domain setup. Most services will have you register your domains through them to make setup even simpler. If they don’t offer domains, you’ll be able to bring over your own. Mailbox setup. The infrastructure services create mailboxes for you, ideally quickly and at a high volume. DNS setup. These providers will take care of setting up the authentication protocols of SPF, DKIM, and DMARC for you, saving you that time and hassle.

    In Outbound mailbox provider selection

  8. Mailbox setup. The infrastructure services create mailboxes for you, ideally quickly and at a high volume. DNS setup. These providers will take care of setting up the authentication protocols of SPF, DKIM, and DMARC for you, saving you that time and hassle. Deliverability optimization. Every service is (should be) working behind the scenes to aim for strong deliverability for their customers. Some also offer tools to improve your performance.

    In Outbound mailbox provider selection

  9. Deliverability optimization. Every service is (should be) working behind the scenes to aim for strong deliverability for their customers. Some also offer tools to improve your performance. Platform integrations. You will be able to use your accounts at any email sending platform where you can use SMTP email accounts. Some cold email infrastructure platforms may offer other features, like warmup, unified inboxes, and email verification.

    In Outbound mailbox provider selection

  10. And of course, their ultimate goal: Improved deliverability. And while there’s no infrastructure service that’s head and shoulders above the rest, there are a handful who are on the right path and already have a nice base of users. These are my picks based on my own hands-on experiences as well as a macro-level assessment of reviews on Reddit, G2, and Capterra.

    In Outbound mailbox provider selection

  11. But before I dive into my picks… If you aren’t quite familiar with cold email infrastructure providers, they’re a new type of service you can use to send high volumes of outreach emails without using Google, Outlook, and the rest. Each cold email infrastructure service is basically like a mini email provider — where you can spin up a ton of mailboxes and send through their private sending servers and IP addresses.

    In SMTP and email API providers

  12. If you aren’t quite familiar with cold email infrastructure providers, they’re a new type of service you can use to send high volumes of outreach emails without using Google, Outlook, and the rest. Each cold email infrastructure service is basically like a mini email provider — where you can spin up a ton of mailboxes and send through their private sending servers and IP addresses. The services also aim to make things faster for you, streamlining everything from buying new domains to creating mailboxes to setting up authentication protocols.

    In SMTP and email API providers

  13. Here are the things you’ll find at essentially every cold email infrastructure provider. Dedicated sending servers. Instead of sending through a major email provider like Google or Outlook, these services have their own complete sending architecture. (Or they’re licensing it from someone else; the best services will have their own.) Dedicated IP addresses. These services have their own pool of IP addresses. You’ll either share IPs with others or get your own dedicated ones.

    In SMTP and email API providers