Tool comparison · Head to headUpdated 9/1/2026

    Closely vs MailRush.io

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    Closely

    Outbound platform that runs automated campaigns across LinkedIn and email from a shared sender, with a conditional sequence builder, unified inbox, contact enrichment and AI personalization agents.

    Starting at$49/month
    Tool B

    MailRush.io

    Cold email software that automates outreach and multi-step follow-ups from your own SMTP/IMAP mailboxes or MailRush-provided sending accounts. Email warmup and email validation are included in every plan.

    Starting at$19/month
    02Line by line

    Pricing comparison.

    Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.

    03Capabilities

    Feature comparison.

    FeatureCloselyMailRush.io
    Multichannel campaigns across LinkedIn and email
    Conditional sequence builder
    Smart Inbox unifying LinkedIn and email replies
    LinkedIn account warmup
    Dedicated residential IP for each LinkedIn account
    OAuth Gmail and Outlook connection plus custom SMTP
    Email finder with a multi-step fallback process
    Phone number finder
    AI lead scoring and personalization agents
    Export from Sales Navigator, LinkedIn posts and events
    Unlimited senders
    Unlimited email warming
    Email validation
    API access & Webhooks
    Zapier integrations
    Spintax support
    Email follow-ups
    Suppression list
    Email copy spam assessment
    Email personalization
    Unsubscription automation
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    Closely

    SalesforcePipedriveHubSpotGoHighLevelGmailMicrosoft OutlookSMTPWebhooks

    MailRush.io

    SMTPIMAPZapierWebhooks
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    Information gathered from official sources and may change. Pricing and features last verified 9/1/2026. Please visit the official websites for the most current information.