I have a VPS (Debian) on which I am using sendmail. Problem is sendmail takes a lot of time to actually send email. I searched and found many people are facing same issue and everyone suggested to write following line in hosts file which I have done but still same problem.
127.0.0.1 localhost localhost.localdomain myhostname
Even if I use following in hosts, problem remains the same.
127.0.0.1 localhost localhost.localdomain myhostname
25.99.12.45 localhost localhost.localdomain myhostname
By the way that 25.99.12.45 is my VPS IP (this is not real IP just dummy one)
EDIT
Aug 10 09:34:43 localhost sendmail[411]: v7BCXh8B100411: from=root, size=15, class=0, nrcpts=1, msgid=<[email protected]>, relay=root@localhost
Aug 10 09:34:43 localhost sm-mta[412]: v7BCXh8B100412: from=, size=316, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA-v4, relay=localhost.localdomain [127.0.0.1]
Aug 10 09:35:47 localhost sm-mta[412]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-AES128-GCM-SHA256, bits=128/128
Aug 10 09:35:47 localhost sm-mta[412]: v7BCXh8B100412: to=, ctladdr= (0/0), delay=00:01:04, xdelay=00:01:04, mailer=esmtp, pri=30316, relay=gmail-smtp-in.l.google.com. [209.xxx.xxx.xxx], dsn=2.0.0, stat=Sent (OK 1502372147 a130si3247433qkg.282 - gsmtp)
Aug 10 09:35:47 localhost sendmail[411]: v7BCXh8B100411: [email protected], ctladdr=root (0/0), delay=00:01:04, xdelay=00:01:04, mailer=relay, pri=30015, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (v7BCXh8B100412 Message accepted for delivery)
Simply insert your real FQDN to /etc/mail/sendmail.cf, started with Dj, so like this: "Djmymachine.mydomain.tld" and restart sendmail.