SMTP Communication Codes

SMTP Communication Codes

Reply codes in numerical order
Code Meaning
200 (nonstandard success response, see rfc876)
211 System status, or system help reply
214 Help message
220 <domain> Service ready
221 <domain> Service closing transmission channel
250 Requested mail action okay, completed
251 User not local; will forward to <forward-path>
252 Cannot VRFY user, but will accept message and attempt delivery
354 Start mail input; end with <CRLF>.<CRLF>
421 <domain> Service not available, closing transmission channel
450 Requested mail action not taken: mailbox unavailable
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
503 Bad sequence of commands
504 Command parameter not implemented
521 <domain> does not accept mail (see rfc1846)
530 Access denied (???a Sendmailism)
550 Requested action not taken: mailbox unavailable
551 User not local; please try <forward-path>
552 Requested mail action aborted: exceeded storage allocation
553 Requested action not taken: mailbox name not allowed
554 Transaction failed
Reply codes grouped by command
Command Code Description
connect
220 <domain> Service ready
421 <domain> Service not available, closing transmission channel
HELO
250 Requested mail action okay, completed
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
504 Command parameter not implemented
521 <domain> does not accept mail [rfc1846]
421 <domain> Service not available, closing transmission channel
EHLO
250 Requested mail action okay, completed
550 Not implemented
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
504 Command parameter not implemented
421 <domain> Service not available, closing transmission channel
MAIL
250 Requested mail action okay, completed
552 Requested mail action aborted: exceeded storage allocation
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
421 <domain> Service not available, closing transmission channel
RCPT
250 Requested mail action okay, completed
251 User not local; will forward to <forward-path>
550 Requested action not taken: mailbox unavailable
551 User not local; please try <forward-path>
552 Requested mail action aborted: exceeded storage allocation
553 Requested action not taken: mailbox name not allowed
450 Requested mail action not taken: mailbox unavailable
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
503 Bad sequence of commands
521 <domain> does not accept mail [rfc1846]
421 <domain> Service not available, closing transmission channel
DATA
354 Start mail input; end with <CRLF>.<CRLF>
451 Requested action aborted: local error in processing
554 Transaction failed
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
503 Bad sequence of commands
421 <domain> Service not available, closing transmission channel
received data
250 Requested mail action okay, completed
552 Requested mail action aborted: exceeded storage allocation
554 Transaction failed
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
RSET
200 (nonstandard success response, see rfc876)
250 Requested mail action okay, completed
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
504 Command parameter not implemented
421 <domain> Service not available, closing transmission channel
SEND
250 Requested mail action okay, completed
552 Requested mail action aborted: exceeded storage allocation
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
421 <domain> Service not available, closing transmission channel
SOML
250 Requested mail action okay, completed
552 Requested mail action aborted: exceeded storage allocation
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
421 <domain> Service not available, closing transmission channel
SAML
250 Requested mail action okay, completed
552 Requested mail action aborted: exceeded storage allocation
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
421 <domain> Service not available, closing transmission channel
VRFY
250 Requested mail action okay, completed
251 User not local; will forward to <forward-path>
252 Cannot VRFY user, but will accept message and attempt delivery
550 Requested action not taken: mailbox unavailable
551 User not local; please try <forward-path>
553 Requested action not taken: mailbox name not allowed
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
504 Command parameter not implemented
421 <domain> Service not available, closing transmission channel
EXPN
250 Requested mail action okay, completed
550 Requested action not taken: mailbox unavailable
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
504 Command parameter not implemented
421 <domain> Service not available, closing transmission channel
HELP
211 System status, or system help reply
214 Help message
500 Syntax error, command unrecognised
501 Syntax error in parameters or arguments
502 Command not implemented
504 Command parameter not implemented
421 <domain> Service not available, closing transmission channel
NOOP
200 (nonstandard success response, see rfc876)
250 Requested mail action okay, completed
500 Syntax error, command unrecognised
421 <domain> Service not available, closing transmission channel
QUIT
221 <domain> Service closing transmission channel
500 Syntax error, command unrecognised
TURN
250 Requested mail action okay, completed
502 Command not implemented
500 Syntax error, command unrecognised
503 Bad sequence of commands

how to remove Google’s secret update software from your mac

http://applehelpwriter.com/2014/07/13/how-to-remove-googles-secret-update-software-from-your-mac/

If you’ve ever downloaded Chrome, even for just a trial (guilty!), you might not be aware that Google have slipped a little bit of hidden software into your Library.

This software is called Google Updater, and it secretly “calls home” on a regular basis and downloads updates to your Google software without either asking before, or notifying you after, doing so. In Developer circles, this is considered very shady practice. Users should be asked for consent and informed when software makes changes to either itself or the user’s computer, and ideally those notifications should tell the user what has been changed and how the changes could impact them. Continue reading


Schedule Windows Server To Reboot

  1. Press WinKey+R > type taskschd.msc and press Enter (it will launch Task Scheduler)
  2. Left click from the right pane on the Task Scheduler Library > open Action from the top menu > New Folder… > name it MyTasks > click OK
  3. Left click on the MyTasks > choose Action from menu > Create Basic Task… (it will open task wizard)
  4. You can enter the Name , for example “Restart”, and press Next
  5. In Trigger section you can specify when you want to run your task, for example:
    • Select Daily , and press Next
    • Now you can specify the day, the hour and set to recur every day, after that press Next
  6. In Action section you can choose what you want to run, for example restart your system, to do this:
    • choose Start a program , and press Next
    • in the Program/script field type shutdown /r , and press Next
  7. And that’s all, you can press Finish

How To Uninstall MySQL From Mac OS X

Uninstalling a MySQL database server from a Mac OS X computer can be done manually or with the command line. It’s always advised to make backups of your databases prior to making big changes, and perhaps copying your MySQL Config file, if it’s been modified. You will need to login with a “sudo” command, or at least when you issue the first sudo command request. You do not need to place “sudo” before every line, only the first line.

rm /usr/local/mysql
rm -rf /usr/local/mysql*
rm -rf /Library/StartupItems/MySQLCOM
rm -rf /Library/PreferencePanes/MySQL*
rm -rf ~/Library/PreferencePanes/MySQL*
rm -rf /Library/Receipts/mysql*
rm -rf /Library/Receipts/MySQL*
rm -rf /var/db/receipts/com.mysql.*