Instead of serving images directly from external servers, Gmail will now serve all images through its own Google servers. So what does this mean to you? Simple: Messaging will be safer and more secure, images are scanned for known viruses or malware and you will never have to click on displaying images below again, said John Rae-Grant, product manager at Google.
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Set your automatic vacation response in ?Settings? Send or download attachments of any kind, including documents, PDFs, zip files (Android 4.3 and up) Attach multiple files at once (Android 4.4) Print emails and attachmentsPerformance improved for low memory devicesAndroid 4.0 (Ice Cream Sandwich) and higher.