#Surgemail smtp authentication how to#

RSET It communicates the server that the ongoing email transmission is going to be terminated, though the SMTP conversation won’t be closed (like in the case of QUIT). It’s another layer of security to guarantee a proper transmission. # openssl s_client -connect 127.0.0.1:25 -starttls smtpĠ070 - 3d c5 f3 e6 6a ff 7e 72-16 f6 06 91 1e 37 30 a1 =.j.~r.70.Ġ080 - 59 36 86 7b 88 21 be af-41 e5 a4 9a a5 4c c2 5b Y6. With the AUTH command, the client authenticates itself to the server, giving its username and password. Providing a simple easy to manage mail server with spam protection, WebMail interface, and advanced management tools.

When you use TLS/SSL, you can check SMTP AUTH(LOGIN AUTH) using an openssl command like below SurgeMail is a carrier-class Mail Server. Note: Be sure to remove the pam_stack.so module if you are using RHEL 5 or newer.Telnet can be used to test SMTP AUTH by using above encoded stringĬonnected to localhost.localdomain (127.0.0.1).Ģ20 ESMTP Sendmail 8.12.10/8.12.10 Wed, Ģ Hello localhost.localdomain, pleased toĢ50-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAINĢ21 2.0.0 closing connection.Generate base64 encoded string for username and password To test SMTP AUTH from command line a valid username/password is required, following command uses username 'test' and password 'redhat' as example. TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN'')dnlĭefine(`confAUTH_MECHANISMS'', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN If you configure your outgoing setting to use authentication. Within /etc/mail/sendmail.mc, make sure following lines are uncommented if you want to use LOGIN PLAIN (GSSAPI DIGEST-MD5 CRAM-MD5 are enabled by default when cyrus-sasl-md5 and cyrus-sasl-gssapi are installed) Antispam settings are available by clicking Webmail Login at the top of this page or by.)ĭefine(`confAUTH_OPTIONS', `A')dnl <- Add this if you do not use TLS/SSL and you want to use auth LOGIN PLAIN 'p' means that SSL/TLS settings are required (cf.

add 'confAUTH_OPTIONS' option with /etc/mail/sendmail.mcĭnl define(`confAUTH_OPTIONS', `A p')dnl Install following packages by using yum or update command.

#Surgemail smtp authentication how to#

How to setup and test SMTP AUTH within Sendmail.