I am not here to justify what I wrote/mention in which social or networking profile and should not matter to you It is very much possible that a person might not know all the things but I am sure that I will try to explore and know it. I know how networking services work and SMTP works too, just wanted to get clarity on my doubts/questions/why?/hows and many synonyms. I am able to get my answer and I don't need to continue this thread where one is just trying to tarnish someone many times and acting like he is trying to help.

Your questions were answered from the first reply. You still refuse to ask a clear question, have mentioned several different scenarios, and STILL don't even acknowledge the advice and things you were told to check.

Not much point in posting, if you refuse to participate. And doubt is STILL not a synonym for question, period.

I refuse to argument on the unnecessary topics like profile, experience years, word meaning, and so many irrelevant mentioned by you several times and I don't care about those. Doubts leads to question, discussion, troubleshooting, ideas and many more, so I don't care what meaning you try to find out for any of these words, I will still use the same. Coming to my query which I posted, it is much clear with the understanding of the working of SMTP(sendmail/postifx) after lot of finding and bit of ignorance of some unnecessary posts.

Here is what I understood

By default, Sendmail 8.12.x and later will always attempt to use MX records if it detects "dns" in the system and I believe the same applies on postfix. The Domain Name System is used by SMTP to convert a name, such as test.com, to a list of servers that can receive connections for that name and to find the IP address of a specific server. By looking up a destination server's address in the DNS, the sending server can properly route a message to a recipient. It worked without doing any changes to the sendmail files be it submit.mc or sendmail.mc or mailertable or SMARTHOST or relay-domains or service-switch or whatever config files related to sendmail. Just install the package and make the service up and you should be able to send mail. I hope same with work with Postfix too.

There is no argument. Those things are brought up, because they are RELEVANT to your question. You can use whatever word you want, it's still going to be WRONG in the context in which you're using it, period. You don't speak English as a first language, and those words aren't interchangeable.
And the 'unnecessary posts' were because you are unable to ask a clear question, provide details, and even STAY with one scenario. Just from THIS THREAD ALONE, not to mention your others. YOU said:

• Post 1 - I recently built a server and then tried to do a mail test and it worked inspite of no config changes, just installation of Postfix Note: you BUILT a server and installed POSTFIX
• Post 10 - The question was not meant to a specific configuration or any issue. Note: This TOTALLY CONTRADICTS post #1
• Post 12 - 1. OS version - RHEL 6.4 2. Sendmail package - sendmail-8.14.4-8.el6.x86_64 Note: This, now contracdicts post #10 (no specific configuration) *AND* post #1, (where you said you installed POSTFIX).
• Post 10 - And second thing does it mean that a person who registered in 2009 out of curiosity and joined this forum does not mean that he started the same day to work on linux. Note: This TOTALLY CONTRADICTS what you claim elsewhere.

This is what you've been told for a LONG time now. You don't ask a clear question, and don't provide details; simple. If you don't, no one, anywhere, can help you. If you called Red Hat support, and said "I have a Red Hat server with postfix..can you tell me how sendmail works?", they'd be confused too, and have to drag details out of you. It's no different here.
If you say so. Good luck with that.

I am out of this endless and useless and poking. Good for you if you want to continue and Best of luck with it

You lied and got caught; you ignore requests to provide details and ask clear questions, and have since you started posting here. Then you get nasty with others, and cannot even seem to acknowledge that your (fairly obvious) questions were answered several times over.

If you can't make sense when asking a question, won't provide details when asked, and want to be rude (as you have been MANY TIMES now), they why bother posting anywhere?

I don't get nasty with anyone. It's the one and only you who picks it every time and instead of have a meaningful discussion you picks other things like years of experience, how much one know, what he does, how many children one has and other unnecessary things. I know the rules of forum and I don't anyone like you to teach me every time I time I post something. If you don't want to respond I am good with it, better ignore and look for other post which you think is good and relevant but I know you want to act as a moral here and trying to poke every time.

Then why, when you're asked to provide details, and you're REMINDED THAT YOU NEVER DO, do you respond as you did in post #4? It's not 'picking' when you ask an open-ended question with no details and no relevant information if someone says "provide those things". Even *THEN* you were given suggestions, yet apparently didn't read/couldn't understand them.
If you know them then why do you CONTINUE TO IGNORE THEM??? EVERY thread you post is the same way...vague question with no details, and people have to ask you for them. Each and every time. Don't like to be told? Guess what...we don't like having to tell you.
Nothing 'moral' about it, and that's apparently another word you don't know how to use. The rules/guidelines are clear...either obey them or don't. That's up to you. As said, don't want to provide details then don't get snotty when you're asked to, period. Your very obvious questions were answered, and you ignore that fact. You repeatedly changed your story/question, and continue to lie. You're a liar...don't get offended when you're treated as one.

Go..get a life instead of writing whatever you want. Who are you to call someone as liar. Do you even know someone or what they are doing, So will you please get out of this thread and try to focus on some other thread which suits your mental temper. That's all

I'll just comment that insofar as these forums are concerned, you HAVE been shown to be a liar multiple times, changing your story multiple times in a single thread. No, that might not make you a liar in real life, but on these forums, most definitely you are.

For what it's worth, while I choose a different path than TBOne, I have seen your constant posts with no information given, vague answers, etc. Unlike TBOne, I usually just click away from your threads knowing that there's no information in your posts to be able to understand what the actual issue is, and that you'll ignore any attempts to get that information. If you don't want people calling you out on your continued failure to post usable questions, then it's quite easy...post the information that has been asked of you untold many times.

Just my $.02

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