Must issue a STARTTLS command first

You are probably attempting to use Gmail’s servers on port 25 to deliver mail to a third party over an unauthenticated connection. Gmail doesn’t let you do this, because then anybody could use Gmail’s servers to send mail to anybody else. This is called an open relay and was a common enabler of spam in the early days. Open relays are no longer acceptable on the Internet.

You will need to ask your SMTP client to connect to Gmail using an authenticated connection, probably on port 587.

Related Posts:

  1. Java 8 Iterable.forEach() vs foreach loop
  2. How to round a number to n decimal places in Java
  3. Error unable to access jarfile C:\Jar
  4. In laymans terms, what does ‘static’ mean in Java? [duplicate]
  5. Sort an array in Java
  6. Java String Split by “|”
  7. Could not reserve enough space for object heap
  8. java.lang.ClassNotFoundException: com.mysql.jdbc.Driver in Eclipse
  9. “Char cannot be dereferenced” error
  10. How can I use pointers in Java?
  11. JavaFX – Exception in Application start method?
  12. Is there a stopwatch in Java?
  13. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  14. Print ArrayList
  15. Unsupported major.minor version 52.0 [duplicate]
  16. What is a StringIndexOutOfBoundsException? How can I fix it?
  17. Non-static variable cannot be referenced from a static context
  18. How to get an enum value from a string value in Java
  19. Round a double to 2 decimal places [duplicate]
  20. How to convert any Object to String?
  21. How do I copy an object in Java?
  22. Unfortunately MyApp has stopped. How can I solve this?
  23. What is the significance of load factor in HashMap?
  24. Which HTML Parser is the best?
  25. Returning Arrays in Java
  26. java.lang.ClassCastException
  27. org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘MyController’:
  28. Can I multiply strings in Java to repeat sequences?
  29. Why does cache use Most Recently Used (MRU) algorithm as evict policy?
  30. javac not working in windows command prompt
  31. Constructor cannot be applied to given types?
  32. Mocking static methods with Mockito
  33. Finding the max/min value in an array of primitives using Java
  34. How to for each the hashmap?
  35. Why do I get SQLCODE=-204, SQLSTATE=42704 with DB2 LUW and WebSphere App Server?
  36. java.net.UnknownHostException: Invalid hostname for server: local
  37. HashMap get/put complexity
  38. @Autowired – No qualifying bean of type found for dependency
  39. SSH library for Java
  40. Java ArrayList replace at specific index
  41. Exception in thread “main” java.lang.OutOfMemoryError: Java heap space
  42. What is the best math library to use with java?
  43. What does java.lang.Thread.interrupt() do?
  44. java string cannot be converted to boolean error
  45. Double decimal formatting in Java
  46. Converting JSON to XML in Java
  47. Import a custom class in Java
  48. Default keystore file does not exist?
  49. The declared package does not match the expected package “”
  50. Sort a Map by values
  51. Is not an enclosing class Java
  52. FtpClient storeFile always return False
  53. Variable is accessed within inner class. Needs to be declared final
  54. Using NotNull Annotation in method argument
  55. How to implement infinity in Java?
  56. Java Does Not Equal (!=) Not Working?
  57. Display Animated GIF
  58. Why is my method undefined for the type object?
  59. Java can’t find file when running through Eclipse
  60. How do I draw a triangle?
  61. Java path..Error of jvm.cfg
  62. How to fix the compiler error in this program?
  63. “The public type <> must be defined in its own file” error in Eclipse [duplicate]
  64. Google firebase check if child exists
  65. How can I initialize a LinkedList with entries/values in it?
  66. How to resolve Unable to load authentication plugin ‘caching_sha2_password’ issue
  67. Deleting an object in java?
  68. Recompile with -Xlint:deprecation for details
  69. How to determine an object’s class?
  70. Division of integers in Java
  71. Consider this code: “int s = 20; int t = s++ + –s;”. What are the values of s and t?
  72. Reading a .txt file using Scanner class in Java
  73. How can I remove a substring from a given String?
  74. Java get String CompareTo as a comparator object
  75. What does super.paintComponent(g) do?
  76. Union or intersection of Java Sets
  77. Simple Coin Toss using random class in Java. The do while loop doesn’t seem to generate random results
  78. Why I am getting DefaultHttpClient is deprecated?
  79. When should you use multithreading? And would multi threading be beneficial if the different threads execute mutually independent tasks?
  80. How to Convert Int to Unsigned Byte and Back
  81. Suggestions needed: Effective Java to C source code converter
  82. Downloading a file from spring controllers
  83. Java Error Exception in thread “AWT-EventQueue-0” java.lang.StackOverflowError
  84. Write a program that reads an unspecified number of integers, determines pos, neg, total, average
  85. Parsing JSON string in Java
  86. java attempting to assign weaker access privilege error
  87. Getting a “no interface expected here” when I try to subclass ServiceConnection [duplicate]
  88. How to determine day of week by passing specific date?
  89. Python-like list comprehension in Java
  90. Can an int be null in Java?
  91. What’s the difference between HashSet and Set?
  92. Java regex email
  93. Java Iterator on Doubly-linked-list
  94. Why “no projects found to import”?
  95. Java Swing setting JPanel Size
  96. how to use “tab space” while writing in text file
  97. Change Name of Import in Java, or import two classes with the same name
  98. set background color: Android
  99. Class JavaLaunchHelper is implemented in two places
  100. No Main class found in NetBeans

Leave a Comment

techhipbettruvabetnorabahisbahis forumuedusedusedusedusedusedusedueduseduedu