International e mail address finder

Despite the wide range of special characters which are technically valid, organisations, mail services, mail servers and mail clients in practice often do not accept all of them. For example, Windows Live Hotmail only allows creation of email addresses using alphanumerics, dot. This rule is known as the LDH rule letters, digits, hyphen.

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In addition, the domain may be an IP address literal, surrounded by square brackets [] , such as jsmith [ Internationalized domain names which are encoded to comply with the requirements for a hostname allow for presentation of non-ASCII domains. Comments are allowed in the domain as well as in the local-part; for example, john.

Of note for e-mail are. According to RFC 2. It is entirely up to the configuration of the mail server. Interpretation of the local part of an email address is dependent on the conventions and policies implemented in the mail server. For example, case sensitivity may distinguish mailboxes differing only in capitalization of characters of the local-part, although this is not very common.

Some mail services support a tag included in the local-part, such that the address is an alias to a prefix of the local part. RFC , [14] refers to this convention as sub-addressing , but it is also known as plus addressing , tagged addressing or mail extensions. Addresses of this form, using various separators between the base name and the tag, are supported by several email services, including Runbox plus , Gmail plus , [15] Rackspace Email plus , Yahoo!

Mail Plus hyphen , [16] Apple's iCloud plus , Outlook. The text of the tag may be used to apply filtering, [20] or to create single-use , or disposable email addresses. Email addresses are often requested as input to website as user identification for the purpose of data validation. Other validation methods are available, such as cell phone number validation, postal mail validation, and fax validation. An email address is generally recognized as having two parts joined with an at-sign , although technical specification detailed in RFC and subsequent RFCs are more extensive.

Syntactically correct, verified email addresses do not guarantee that an email box exists.

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Thus many mail servers use other techniques and check the mailbox existence against relevant systems such as the Domain Name System for the domain or using callback verification to check if the mailbox exists. Callback verification is an imperfect solution, as it may disabled to avoid a directory harvest attack. Several validation techniques may be utilized to validate an email address.

For example, [26]. Some companies offer services to validate an email address, often using an Application programming interface , but there is no guarantee that it will provide accurate results. Though the original proposal included a downgrading mechanism for legacy systems, this has now been dropped.

EAI enables users to have a localized address in a native language script or character set, as well as an ASCII form for communicating with legacy systems or for script-independent use. Applications that recognize internationalized domain names and mail addresses must have facilities to convert these representations. Significant demand for such addresses is expected in China, Japan, Russia, and other markets that have large user bases in a non-Latin-based writing system.

For example, in addition to the. Indian company XgenPlus. Servers compliant with this will be able to handle these:. From Wikipedia, the free encyclopedia.

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Klensin October Simple Mail Transfer Protocol. RFC However, exploiting the case sensitivity of mailbox local-parts impedes interoperability and is discouraged. October November February Retrieved However, the phrase is hidden, thus one has to either check the availability of an invalid ID, e.

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Retrieved February 9, Within Windows. Archived from the original on We run advanced checks to validate MX records. We detect and remove all duplicate emails. Don't spend credits on duplicate emails when sending your next campaign. Get rid of them and boost the open rate and CTR of your cool email marketing campaigns. Verify emails before they get to your database.

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