? This is related to the performance of each mailbox. I suggest you use QQ e-mail, which is the most widely used free personal e-mail in China, with perfect functions and high security. You can associate other mailboxes with him, so that you can not only receive emails from other mailboxes, but also send emails from other mailboxes. Moreover, QQ mailbox can not only receive emails with picture signatures, but also design their own email signatures, which is simple and convenient.

I wrote it for your reference:

Log in to your QQ mailbox, click "Settings" and select "General" below, which contains special settings about "Personal Signature".

Just select "Add Personalized Signature".

Please continue to ask me if you have any questions, and hope to adopt them! ^_^