Put email in queue and send it one by one, by limits.
More Plugins
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Auto Post for Task Scheduler
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Social Profilr Reimagined
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ArchiveMaster – Auto Archive and Export Old Orders for WooCommerce
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Publitio Offloading
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Custom HTML/PHP Post Templates
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Brosix Live Chat
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XML for Hotline
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sleekStore lite
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Trash Fail Safe
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Simply Map Me
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Variation Swatches for WooCommerce Stores
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My Extreme Twitter
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Instant WebP Converter
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Generate Amazon Contacts
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WP REST Menus
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WP Amazon Affiliate Change to Smile Links
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WP Plugin Filter
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WebP Image Optimization
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Colorful Post
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Keep Blanks