SMTP error from remote mail server after RCPT TO:<firstname.lastname@example.org>: host domain.com [xx.xx.xx.xx]:
550-Please turn on SMTP Authentication in your mail client.
550-(mail.server.net) [xxx.xxx.xxx.xxx]:36825 is not permitted to relay through
550 this server without authentication.
All popular mail servers have SMTP authentication enabled for security protection. Mail accounts using those servers need to authenticate first, before trying to send mails.
At times, users can try to send mails from their mail clients without enabling authentication. ‘550-Please turn on SMTP Authentication’ is a commonly reported error when users try to send mails without authenticating.
For businesses that use SMS for business correspondence (eg., taking orders, getting instructions from customers, etc.), it is important to sync them with the official mail address. It allows easy sharing of client instructions, and facilitate faster service provisioning. (more…)
Microsoft announced the general availability of the Microsoft Exchange Server 2010 Service Pack 1 on August 25th (They released the beta in June in case you missed it). Like the SP for Server 2008R2, this SP also includes more than just bug fixes. For a list of features and functionality added via SP1, check out this link.
Communication is one of the most important paradigm on which a business stands. In today’s world, e-mail is still the fastest means of formal communication. Even though it has been around since mid 1960’s, never before has its glory reached the present stature. The importance of email, especially for people who conduct online business is unquestionable.
It is possible to host your own mail server using sendmail, qmail or exim, among host of other MTA’s. But – “Is there peace of mind?” What if the e-mail is delayed? What if the final confirmation mail of the very important deal, never reaches your inbox?
When so much depends on your e-mail service, you should depend on mail service providers who provide you with professional solutions such as Zimbra, Scalix and MS Exchange among others. On the other hand, you can purchase these solutions and implement them yourself. You would just need a server with network connectivity, to get started.