По запросу: "email send with gui" найдено 144 иконки.

mail Created with Sketch Beta.
content / 30 - content, email, inbox, mail, message icon
inbox_fill
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i
ic_fluent_send_copy_24_filled Created with Sketch.
thunderbird
165
ic_fluent_mail_read_48_filled Created with Sketch.
inbox-success Created with Sketch.
e-mail-filled