sendmail: Not running with correct effective GID. Is sendmail binary setgid mailtrap?

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sendmail: Not running with correct effective GID. Is sendmail binary setgid mailtrap?

[Error above error message shows in login SSH screen directly or you are getting this message]
just change the send mail permission using below command:
—
chmod 2755 /usr/sbin/sendmail
—

That’s it..:)
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