I use a command line program to send mail via SMTP protocol, and i get the same error message: MAIL FROM failed: '530 5.5.1 Authentication Required.' Should I need extra configuration from the mail or my program wont work? The program is named mailsend.
H:\>mailsend1.17b14.exe -to
example@mail.com -from zohomail
@zohomail.com -ssl -port 465 -auth -smtp smtp.zoho.com -sub test -v -user zohomail@zohomail -pass thepass
Connecting to smtp.zoho.com:465
libmsock: using getaddrinfo
AF_INET IPv4
IP address: 136.143.191.189:465
EINPROGRESS=10036,EWOULDBLOCK=10035
connect(): socket=488,rc=-1, errno=10035
(Debug) Try socket 488
Cipher: ECDHE-RSA-AES256-SHA
Certificate information:
Subject: /CN=*.zoho.com
Issuer: /C=US/O=DigiCert Inc/OU=
www.digicert.com/CN=Thawte RSA CA 2018
[S] 220 mx.zohomail.com SMTP Server ready November 20, 2019 1:57:35 PM PST
[C] HELO localhost
[S] 250 mx.zohomail.com Hello localhost (187.200.85.11 (187.200.85.11))
[C] MAIL FROM: <zohomail
@zohomail.com>
[S] 530 5.5.1 Authentication Required.
Error: MAIL FROM failed: '530 5.5.1 Authentication Required.'
Could not send mail