which of the following is a correct format of email address

 <p style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-variation-settings: var(--cib-type-body2-font-variation-settings); font-weight: 400; letter-spacing: normal; line-height: var(--cib-type-body2-line-height); margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px !important; orphans: 2; padding: 0px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; user-select: text; white-space: normal; widows: 2; word-break: break-word; word-spacing: 0px;">There are many possible formats of email addresses, but some of the most common and correct ones are:</p><ul style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; display: flex; flex-direction: column; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-weight: 400; gap: 10px; letter-spacing: normal; margin: 12px 0px 0px; orphans: 2; padding-inline-start: 24px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><li>firstname.lastname@example.com</li><li>firstname@example.com</li><li>firstnameinitial.lastname@example.com</li><li>firstname.lastnameinitial@example.com</li><li>fullname@example.com</li></ul><p style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-variation-settings: var(--cib-type-body2-font-variation-settings); font-weight: 400; letter-spacing: normal; line-height: var(--cib-type-body2-line-height); margin: 12px 0px 0px; orphans: 2; padding: 0px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; user-select: text; white-space: normal; widows: 2; word-break: break-word; word-spacing: 0px;">You can also use a period (.) or an underscore (_) to separate the names, such as firstname.lastname@example.com or firstname_lastname@example.com. However, you should avoid using spaces, commas, slashes, or other symbols that are not allowed in email addresses.</p><p style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-variation-settings: var(--cib-type-body2-font-variation-settings); font-weight: 400; letter-spacing: normal; line-height: var(--cib-type-body2-line-height); margin: 12px 0px 0px; orphans: 2; padding: 0px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; user-select: text; white-space: normal; widows: 2; word-break: break-word; word-spacing: 0px;">Some examples of valid email addresses are:</p><ul style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; display: flex; flex-direction: column; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-weight: 400; gap: 10px; letter-spacing: normal; margin: 12px 0px 0px; orphans: 2; padding-inline-start: 24px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><li><a class="tooltip-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-12-group" href="https://neverbounce.com/blog/format-email-address" style="border-bottom: 2px solid transparent; color: inherit; position: relative; text-decoration-color: var(--cib-color-foreground-neutral-tertiary); text-decoration-line: underline; text-decoration-style: dotted; text-decoration-thickness: initial; text-underline-offset: 3px;" target="_blank">rohan.singh@example.com</a><a aria-label="1: " class="ac-anchor sup-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-12" href="https://neverbounce.com/blog/format-email-address" style="color: var(--cib-color-foreground-system-link-primary); position: relative; text-decoration: none;" target="_blank"><sup style="align-items: center; background: var(--cib-color-fill-accent-alt-primary); border-radius: var(--cib-comp-message-citation-border-radius); color: var(--cib-color-foreground-accent-primary); display: inline-flex; font-size: var(--cib-type-caption2-strong-font-size); font-variation-settings: var(--cib-type-caption2-strong-font-variation-settings); font-weight: var(--cib-type-caption2-strong-font-weight); height: 14px; justify-content: center; line-height: var(--cib-type-caption2-strong-line-height); margin: 0px 2px; min-width: 14px; outline: transparent solid 1px; position: relative; text-decoration-color: transparent; top: -1px; vertical-align: top;">1</sup></a></li><li><a class="tooltip-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-15-group" href="https://en.wikipedia.org/wiki/Email_address" style="border-bottom: 2px solid transparent; color: inherit; position: relative; text-decoration-color: var(--cib-color-foreground-neutral-tertiary); text-decoration-line: underline; text-decoration-style: dotted; text-decoration-thickness: initial; text-underline-offset: 3px;" target="_blank">rakesh@example.com</a><a aria-label="2: " class="ac-anchor sup-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-15" href="https://en.wikipedia.org/wiki/Email_address" style="color: var(--cib-color-foreground-system-link-primary); position: relative; text-decoration: none;" target="_blank"><sup style="align-items: center; background: var(--cib-color-fill-accent-alt-primary); border-radius: var(--cib-comp-message-citation-border-radius); color: var(--cib-color-foreground-accent-primary); display: inline-flex; font-size: var(--cib-type-caption2-strong-font-size); font-variation-settings: var(--cib-type-caption2-strong-font-variation-settings); font-weight: var(--cib-type-caption2-strong-font-weight); height: 14px; justify-content: center; line-height: var(--cib-type-caption2-strong-line-height); margin: 0px 2px; min-width: 14px; outline: transparent solid 1px; position: relative; text-decoration-color: transparent; top: -1px; vertical-align: top;">2</sup></a></li><li><a class="tooltip-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-18-group" href="https://www.bing.com/search?form=NTPCHB&q=Bing+AI&showconv=1#" style="border-bottom: 2px solid transparent; color: inherit; position: relative; text-decoration-color: var(--cib-color-foreground-neutral-tertiary); text-decoration-line: underline; text-decoration-style: dotted; text-decoration-thickness: initial; text-underline-offset: 3px;">rsingh@example.com</a><a aria-label="2: " class="ac-anchor sup-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-18" href="https://en.wikipedia.org/wiki/Email_address" style="color: var(--cib-color-foreground-system-link-primary); position: relative; text-decoration: none;" target="_blank"><sup style="align-items: center; background: var(--cib-color-fill-accent-alt-primary); border-radius: var(--cib-comp-message-citation-border-radius); color: var(--cib-color-foreground-accent-primary); display: inline-flex; font-size: var(--cib-type-caption2-strong-font-size); font-variation-settings: var(--cib-type-caption2-strong-font-variation-settings); font-weight: var(--cib-type-caption2-strong-font-weight); height: 14px; justify-content: center; line-height: var(--cib-type-caption2-strong-line-height); margin: 0px 2px; min-width: 14px; outline: transparent solid 1px; position: relative; text-decoration-color: transparent; top: -1px; vertical-align: top;">2</sup></a></li><li><a class="tooltip-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-21-group" href="https://www.bing.com/search?form=NTPCHB&q=Bing+AI&showconv=1#" style="border-bottom: 2px solid transparent; color: inherit; position: relative; text-decoration-color: var(--cib-color-foreground-neutral-tertiary); text-decoration-line: underline; text-decoration-style: dotted; text-decoration-thickness: initial; text-underline-offset: 3px;">rakeshs@example.com</a><a aria-label="2: " class="ac-anchor sup-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-21" href="https://en.wikipedia.org/wiki/Email_address" style="color: var(--cib-color-foreground-system-link-primary); position: relative; text-decoration: none;" target="_blank"><sup style="align-items: center; background: var(--cib-color-fill-accent-alt-primary); border-radius: var(--cib-comp-message-citation-border-radius); color: var(--cib-color-foreground-accent-primary); display: inline-flex; font-size: var(--cib-type-caption2-strong-font-size); font-variation-settings: var(--cib-type-caption2-strong-font-variation-settings); font-weight: var(--cib-type-caption2-strong-font-weight); height: 14px; justify-content: center; line-height: var(--cib-type-caption2-strong-line-height); margin: 0px 2px; min-width: 14px; outline: transparent solid 1px; position: relative; text-decoration-color: transparent; top: -1px; vertical-align: top;">2</sup></a></li><li><a class="tooltip-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-24-group" href="https://en.wikipedia.org/wiki/Email_address" style="border-bottom: 2px solid transparent; color: inherit; position: relative; text-decoration-color: var(--cib-color-foreground-neutral-tertiary); text-decoration-line: underline; text-decoration-style: dotted; text-decoration-thickness: initial; text-underline-offset: 3px;" target="_blank">rakeshkumarsingh@example.com</a><a aria-label="2: " class="ac-anchor sup-target" data-citationid="8200b400-ac30-4d52-7d75-16dc4d8c447d-24" href="https://en.wikipedia.org/wiki/Email_address" style="color: var(--cib-color-foreground-system-link-primary); position: relative; text-decoration: none;" target="_blank"><sup style="align-items: center; background: var(--cib-color-fill-accent-alt-primary); border-radius: var(--cib-comp-message-citation-border-radius); color: var(--cib-color-foreground-accent-primary); display: inline-flex; font-size: var(--cib-type-caption2-strong-font-size); font-variation-settings: var(--cib-type-caption2-strong-font-variation-settings); font-weight: var(--cib-type-caption2-strong-font-weight); height: 14px; justify-content: center; line-height: var(--cib-type-caption2-strong-line-height); margin: 0px 2px; min-width: 14px; outline: transparent solid 1px; position: relative; text-decoration-color: transparent; top: -1px; vertical-align: top;">2</sup></a></li></ul><p style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-variation-settings: var(--cib-type-body2-font-variation-settings); font-weight: 400; letter-spacing: normal; line-height: var(--cib-type-body2-line-height); margin: 12px 0px 0px; orphans: 2; padding: 0px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; user-select: text; white-space: normal; widows: 2; word-break: break-word; word-spacing: 0px;">Some examples of invalid email addresses are:</p><ul style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; display: flex; flex-direction: column; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-weight: 400; gap: 10px; letter-spacing: normal; margin: 12px 0px 0px; orphans: 2; padding-inline-start: 24px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><li>rohan singh@example.com (contains a space)</li><li>rohan,singh@example.com (contains a comma)</li><li>rohan/singh@example.com (contains a slash)</li><li>rohan@ (missing a domain name)</li><li>@example.com (missing a username)</li></ul><p style="-webkit-text-stroke-width: 0px; background-color: rgba(255, 255, 255, 0.7); color: #111111; font-family: -apple-system, Roboto, SegoeUI, "Segoe UI", "Helvetica Neue", Helvetica, "Microsoft YaHei", "Meiryo UI", Meiryo, "Arial Unicode MS", sans-serif; font-size: 16px; font-style: normal; font-variant-caps: normal; font-variant-ligatures: normal; font-variation-settings: var(--cib-type-body2-font-variation-settings); font-weight: 400; letter-spacing: normal; line-height: var(--cib-type-body2-line-height); margin: 12px 0px 0px; orphans: 2; padding: 0px; text-align: start; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; text-indent: 0px; text-transform: none; user-select: text; white-space: normal; widows: 2; word-break: break-word; word-spacing: 0px;">I hope this helps you understand the correct format of email addresses. 😊</p>

which of the following is a correct format of email address

  There are many possible formats of email addresses, but some of the most common and correct ones are: firstname.lastname@example.com first...

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