## Not run:
from <- "<tal.galili@gmail.com>" # sprintf("<sendmailR@\%s>", Sys.info()[4])
to <- "<tal.galili@gmail.com>"
subject <- "Hello from R"
body <- list("It works!", mime_part(iris))
sendmail(from, to, subject, body,
         control=list(smtpServer="ASPMX.L.GOOGLE.COM."))

Error in socketConnection(host = server, port = port, blocking = TRUE) :
  cannot open the connection
In addition: Warning message:
In socketConnection(host = server, port = port, blocking = TRUE) :
  smtp.gmail.com tal.galili@gmail.com:statisfun:25 cannot be opened

send.mail(from = "tal.galili@gmail.com",
          to = "tal.galili@gmail.com",
          subject = "Subject of the email",
          body = "Body of the email",
          smtp = list(host.name = "smtp.gmail.com", port = 465, user.name = "tal.galili", passwd = "PASSWORD", ssl = TRUE),
          authenticate = TRUE,
          send = TRUE)

library(sendmailR)

# 1 case
from <- sprintf("<sendmailR@%s>", Sys.info()[4])
to <- "<tal.galili@gmail.com>"
subject <- "Hello from R"
msg <- "my first email"
sendmail(from, to, subject, msg,control=list(smtpServer="ASPMX.L.GOOGLE.COM"))

# 2 case
from <- sprintf("<tal.galili@gmail.com>", Sys.info()[4])
to <- "<tal.galili@gmail.com>"
subject <- "Hello from R"
msg <- "my first email"
sendmail(from, to, subject, msg,control=list(smtpServer="ASPMX.L.GOOGLE.COM"))

SendMail <- function(from="me@my-server.de",to="me@my-server.de",text="Hallo",subject="Sag Hallo",smtp="smtp.my.server.de",user="me.myself.and.i",pw="123"){
require(stringr)
part1 <- "Const cdoSendUsingPickup = 1 'Send message using the local SMTP service pickup directory.
Const cdoSendUsingPort = 2 'Send the message using the network (SMTP over the network).
Const cdoAnonymous = 0 'Do not authenticate
Const cdoBasic = 1 'basic (clear-text) authentication
Const cdoNTLM = 2 'NTLM "

part2 <- paste(paste("Set objMessage = CreateObject(",'"',"CDO.Message",'"',")" ,sep=""),
paste("objMessage.Subject = ",'"',subject,'"',sep=""),
paste("objMessage.From = ",'"',from,'"',sep=""),
paste("objMessage.To = ",'"',to,'"',sep=""),
paste("objMessage.TextBody = ",'"',text,'"',sep=""),
sep="n")

part3 <- paste(
"'==This section provides the configuration information for the remote SMTP server.

objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2

'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = ",'"',smtp,'"',"

'Type of authentication, NONE, Basic (Base64 encoded), NTLM
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = cdoBasic

'Your UserID on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusername") = ",'"',user,'"',"

'Your password on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendpassword") = ",'"',pw,'"', "

'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25

'Use SSL for the connection (False or True)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False

'Connection Timeout in seconds (the maximum time CDO will try to establish a connection to the SMTP server)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60
objMessage.Configuration.Fields.Update

'==End remote SMTP server configuration section==

objMessage.Send
",sep="")

vbsscript <- paste(part1,part2,part3,sep="nnn")
str_split(vbsscript,"n")
writeLines(vbsscript, "sendmail.vbs")
shell("sendmail.vbs")
unlink("sendmail.vbs")
}

SendMail(
    from="me.myself@andI.com",
    to="whatsup@man.com",
    text="Hallo",
    subject="readThis",
    smtp="smtp.andI.com",
    user="me.myself@andI.com",
    pw="123456"
    )

Error in if (code == lcode) { : argument is of length zero