Put email in queue and send it one by one, by limits.
More Plugins
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PressForward
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IP Location Block
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Page Specific Menu Items
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PublishPress Revisions: Duplicate Posts, Submit, Approve and Schedule Content Changes
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Under Construction, Coming Soon & Maintenance Mode
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bbPress Unread Posts v2
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Bulk remove posts from category
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Timeline Module for Beaver Builder
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Preload Images
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WP User Stylesheet Switcher
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AR for WordPress
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Google Web Fonts Customizer (GWFC)
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BlackBox Debug Bar
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Variation Swatches for WooCommerce – Color, Image & Size Swatches
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Media Cleaner: Clean your WordPress!
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Cyr to Lat Enhanced
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Sublanguage
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Responsive Videos by Angie Makes
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Custom Sender for Email Before Download
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RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator