Making Email Deliverability Easy for WordPress

WP Mail SMTP fixes deliverability problems with your WordPress emails and form notifications. It's built by the same folks behind WPForms.

Improves email deliverability in WordPress.
Used by 2+ million websites.
Free mailers: SendLayer, SMTP.com, Sendinblue, Google Workspace / Gmail, Mailgun, Postmark, SendGrid.
Pro mailers: Amazon SES, Microsoft 365 / Outlook.com, Zoho Mail.

WP Mail SMTP

WP Mail SMTP on WordPress.org

Set Up WP Mail SMTP

Select and configure your mailer.

Where do the available Dimensions come from?

Those are all sizes that are already generated for the used image in the WordPress Media Library AND have the same aspect ratio.

Why are my choices not exactly 1X or 2X?

The File Size Optimizer looks at the required media size throughout all device layouts and in that way evaluates the available Dimensions.
If available, there is always a choice shown that is the closest to 1X or 2X.
If no fitting size is available, you can hover the standard (1X) or retina (2X) lines to get an info on the currently optimal size for your media.

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