\u5728\u73b0\u4ee3\u4e92\u8054\u7f51\u7cfb\u7edf\u4e2d，\u7535\u5b50\u90ae\u4ef6（Email）\u51e0\u4e4e\u662f\u6240\u6709\u7cfb\u7edf\u6700\u57fa\u7840\u7684\u8eab\u4efd\u6807\u8bc6\u4e4b\u4e00\u3002\u65e0\u8bba\u662f\u6ce8\u518c\u767b\u5f55\u3001\u627e\u56de\u5bc6\u7801\u3001\u901a\u77e5\u63d0\u9192\u3001\u8425\u9500\u7cfb\u7edf\u3001\u4f01\u4e1aOA\u7cfb\u7edf，\u751a\u81f3\u5fae\u670d\u52a1\u4e4b\u95f4\u7684\u6d88\u606f\u901a\u77e5，\u90ae\u7bb1\u5730\u5740\u90fd\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002<\/p>\n
\u5178\u578b\u5e94\u7528\u573a\u666f\u5305\u62ec：<\/p>\n
\u7528\u6237\u6ce8\u518c\u6821\u9a8c<\/p>\n<\/li>\n
\u627e\u56de\u5bc6\u7801<\/p>\n<\/li>\n
\u53d1\u9001\u9a8c\u8bc1\u7801<\/p>\n<\/li>\n
\u4f01\u4e1a\u7528\u6237\u8ba4\u8bc1<\/p>\n<\/li>\n
CRM\u7cfb\u7edf\u6570\u636e\u5f55\u5165<\/p>\n<\/li>\n
\u6279\u91cf\u8425\u9500\u7cfb\u7edf\u6570\u636e\u6e05\u6d17<\/p>\n<\/li>\n<\/ul>\n
\u5982\u679c\u90ae\u7bb1\u5730\u5740\u6821\u9a8c\u4e0d\u4e25\u683c，\u53ef\u80fd\u4f1a\u5e26\u6765：<\/p>\n
\u6570\u636e\u6c61\u67d3（\u65e0\u6548\u90ae\u7bb1\u5b58\u5165\u6570\u636e\u5e93）<\/p>\n<\/li>\n
\u90ae\u4ef6\u53d1\u9001\u5931\u8d25\u7387\u9ad8<\/p>\n<\/li>\n
\u88ab\u6076\u610f\u6784\u9020\u8f93\u5165\u653b\u51fb<\/p>\n<\/li>\n
\u90ae\u4ef6\u670d\u52a1\u5668\u538b\u529b\u589e\u52a0<\/p>\n<\/li>\n
\u5b89\u5168\u98ce\u9669（\u4f8b\u5982\u6ce8\u5165\u653b\u51fb）<\/p>\n<\/li>\n
\u56e0\u6b64，\u5b9e\u73b0\u4e00\u4e2a\u4e25\u8c28\u3001\u53ef\u6269\u5c55\u3001\u53ef\u6559\u5b66\u7684\u90ae\u7bb1\u6821\u9a8c\u5de5\u5177，\u662f\u975e\u5e38\u6709\u610f\u4e49\u7684\u3002<\/p>\n
\u5b9e\u73b0\u51fd\u6570：<\/p>\n
func IsValidEmail(email string) bool<\/p>\n
\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u5408\u6cd5\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002<\/p>\n
\u975e\u7a7a\u5b57\u7b26\u4e32<\/p>\n<\/li>\n
\u5305\u542b\u4e14\u4ec5\u5305\u542b\u4e00\u4e2a @<\/p>\n<\/li>\n
\u672c\u5730\u90e8\u5206（local part）\u5408\u6cd5<\/p>\n<\/li>\n
\u57df\u540d\u90e8\u5206（domain part）\u5408\u6cd5<\/p>\n<\/li>\n
\u57df\u540d\u5fc5\u987b\u7b26\u5408DNS\u89c4\u5219<\/p>\n<\/li>\n
\u4e0d\u5141\u8bb8\u975e\u6cd5\u5b57\u7b26<\/p>\n<\/li>\n
\u957f\u5ea6\u9650\u5236\u5408\u7406<\/p>\n<\/li>\n
test@example.com
\nuser.name@example.com
\nuser_name123@example.co.uk
\ntest123@sub.example.com<\/p>\n
testexample.com
\ntest@@example.com
\n@test.com
\ntest@
\ntest@.com
\ntest@999.999.999.999<\/p>\n
\u652f\u6301\u53ef\u914d\u7f6e\u6700\u5927\u957f\u5ea6<\/p>\n<\/li>\n
\u652f\u6301\u81ea\u5b9a\u4e49\u57df\u540d\u89c4\u5219<\/p>\n<\/li>\n
\u8fd4\u56de\u8be6\u7ec6\u9519\u8bef\u4fe1\u606f<\/p>\n<\/li>\n
\u63d0\u4f9b\u5355\u5143\u6d4b\u8bd5<\/p>\n<\/li>\n
\u5c01\u88c5\u4e3a\u5de5\u5177\u7ed3\u6784\u4f53<\/p>\n<\/li>\n<\/ul>\n
\u6807\u51c6\u90ae\u7bb1\u7ed3\u6784：<\/p>\n
local-part@domain<\/p>\n
\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u89c4\u8303\u7531RFC 5322\u5b9a\u4e49\u3002<\/p>\n
\u7b80\u5316\u89c4\u5219：<\/p>\n
local\u90e8\u5206\u5141\u8bb8\u5b57\u6bcd\u6570\u5b57\u548c\u7279\u6b8a\u7b26\u53f7<\/p>\n<\/li>\n
domain\u90e8\u5206\u5fc5\u987b\u662f\u5408\u6cd5\u57df\u540d<\/p>\n<\/li>\n
\u6700\u5927\u957f\u5ea6 254 \u5b57\u7b26<\/p>\n<\/li>\n
local\u90e8\u5206\u6700\u5927 64 \u5b57\u7b26<\/p>\n<\/li>\n<\/ul>\n
Go\u63d0\u4f9b：<\/p>\n
import "net\/mail"<\/p>\n
\u6838\u5fc3\u51fd\u6570：<\/p>\n
mail.ParseAddress()<\/p>\n
\u4f46\u95ee\u9898：<\/p>\n
\u8fc7\u4e8e\u5bbd\u677e<\/p>\n<\/li>\n
\u4e0d\u9002\u5408\u4e25\u683c\u4e1a\u52a1\u6821\u9a8c<\/p>\n<\/li>\n<\/ul>\n
\u56e0\u6b64\u6211\u4eec\u5b9e\u73b0\u81ea\u5b9a\u4e49\u4e25\u683c\u7248\u672c\u3002<\/p>\n
\u7528\u4e8e\u6821\u9a8c：<\/p>\n
local\u90e8\u5206<\/p>\n<\/li>\n
\u57df\u540d\u683c\u5f0f<\/p>\n<\/li>\n<\/ul>\n
\u5355\u4e00\u804c\u8d23<\/p>\n<\/li>\n
\u53ef\u914d\u7f6e<\/p>\n<\/li>\n
\u6613\u6269\u5c55<\/p>\n<\/li>\n
\u9519\u8bef\u660e\u786e<\/p>\n<\/li>\n<\/ul>\n
\u6574\u4f53\u6d41\u7a0b：<\/p>\n
1. \u5224\u7a7a
\n2. \u957f\u5ea6\u6821\u9a8c
\n3. \u62c6\u5206@
\n4. \u6821\u9a8clocal\u90e8\u5206
\n5. \u6821\u9a8cdomain\u90e8\u5206
\n6. \u6821\u9a8c\u57df\u540d\u89c4\u5219
\n7. \u8fd4\u56de\u7ed3\u679c<\/p>\n
type EmailValidator struct {
\nMaxLength int
\n}<\/p>\n
\u4e3b\u6821\u9a8c\u51fd\u6570<\/p>\n<\/li>\n
\u6821\u9a8clocal\u90e8\u5206<\/p>\n<\/li>\n
\u6821\u9a8cdomain\u90e8\u5206<\/p>\n<\/li>\n
\u6821\u9a8cIP\u57df\u540d（\u53ef\u9009）<\/p>\n<\/li>\n<\/ul>\n
local\u5141\u8bb8\u5b57\u7b26：<\/p>\n
a-z A-Z 0-9 . _ % + –<\/p>\n
domain\u89c4\u5219：<\/p>\n
([a-zA-Z0-9-]+\\\\.)+[a-zA-Z]{2,}<\/p>\n
\/\/ =============================
\n\/\/ file: validator\/email_validator.go
\n\/\/ =============================
\npackage validator<\/p>\n
import (
\n"errors"
\n"net"
\n"regexp"
\n"strings"
\n)<\/p>\n
\/\/ EmailValidator \u90ae\u7bb1\u6821\u9a8c\u7ed3\u6784\u4f53
\ntype EmailValidator struct {
\n\/\/ \u6700\u5927\u90ae\u7bb1\u957f\u5ea6（\u9ed8\u8ba4254）
\nMaxLength int
\n}<\/p>\n
\/\/ NewEmailValidator \u6784\u9020\u51fd\u6570
\nfunc NewEmailValidator() *EmailValidator {
\nreturn &EmailValidator{
\nMaxLength: 254,
\n}
\n}<\/p>\n
\/\/ IsValid \u6821\u9a8c\u90ae\u7bb1\u662f\u5426\u5408\u6cd5
\nfunc (v *EmailValidator) IsValid(email string) (bool, error) {<\/p>\n
\/\/ 1. \u53bb\u9664\u7a7a\u683c
\nemail = strings.TrimSpace(email)<\/p>\n
\/\/ 2. \u5224\u7a7a
\nif email == "" {
\nreturn false, errors.New("\u90ae\u7bb1\u4e0d\u80fd\u4e3a\u7a7a")
\n}<\/p>\n
\/\/ 3. \u957f\u5ea6\u6821\u9a8c
\nif len(email) > v.MaxLength {
\nreturn false, errors.New("\u90ae\u7bb1\u957f\u5ea6\u8d85\u8fc7\u9650\u5236")
\n}<\/p>\n
\/\/ 4. \u5fc5\u987b\u5305\u542b\u4e14\u4ec5\u5305\u542b\u4e00\u4e2a@
\nif strings.Count(email, "@") != 1 {
\nreturn false, errors.New("\u90ae\u7bb1\u5fc5\u987b\u5305\u542b\u4e00\u4e2a@\u7b26\u53f7")
\n}<\/p>\n
\/\/ 5. \u62c6\u5206local\u548cdomain
\nparts := strings.Split(email, "@")
\nlocal := parts[0]
\ndomain := parts[1]<\/p>\n
\/\/ 6. \u6821\u9a8clocal\u90e8\u5206
\nif !isValidLocal(local) {
\nreturn false, errors.New("\u975e\u6cd5\u7684local\u90e8\u5206")
\n}<\/p>\n
\/\/ 7. \u6821\u9a8cdomain\u90e8\u5206
\nif !isValidDomain(domain) {
\nreturn false, errors.New("\u975e\u6cd5\u7684domain\u90e8\u5206")
\n}<\/p>\n
return true, nil
\n}<\/p>\n
\/\/ isValidLocal \u6821\u9a8clocal\u90e8\u5206
\nfunc isValidLocal(local string) bool {<\/p>\n
\/\/ \u957f\u5ea6\u9650\u5236（RFC\u5efa\u8bae64）
\nif len(local) == 0 || len(local) > 64 {
\nreturn false
\n}<\/p>\n
\/\/ \u4e0d\u5141\u8bb8\u4ee5.\u5f00\u5934\u6216\u7ed3\u5c3e
\nif strings.HasPrefix(local, ".") || strings.HasSuffix(local, ".") {
\nreturn false
\n}<\/p>\n
\/\/ \u4e0d\u5141\u8bb8\u8fde\u7eed..
\nif strings.Contains(local, "..") {
\nreturn false
\n}<\/p>\n
\/\/ \u5141\u8bb8\u5b57\u7b26\u6b63\u5219
\nvar localRegex = regexp.MustCompile(`^[a-zA-Z0-9._%+\\\\-]+$`)
\nreturn localRegex.MatchString(local)
\n}<\/p>\n
\/\/ isValidDomain \u6821\u9a8cdomain\u90e8\u5206
\nfunc isValidDomain(domain string) bool {<\/p>\n
\/\/ \u4e0d\u5141\u8bb8\u4e3a\u7a7a
\nif domain == "" {
\nreturn false
\n}<\/p>\n
\/\/ \u4f18\u5148\u5224\u65ad\u662f\u5426\u4e3aIP\u5730\u5740
\nif net.ParseIP(domain) != nil {
\nreturn true
\n}<\/p>\n
\/\/ \u57df\u540d\u6b63\u5219
\nvar domainRegex = regexp.MustCompile(`^([a-zA-Z0-9-]+\\\\.)+[a-zA-Z]{2,}$`)
\nreturn domainRegex.MatchString(domain)
\n}<\/p>\n
\/\/ =============================
\n\/\/ file: main.go
\n\/\/ =============================
\npackage main<\/p>\n
import (
\n"fmt"
\n"emailvalidator\/validator"
\n)<\/p>\n
func main() {<\/p>\n
v := validator.NewEmailValidator()<\/p>\n
testCases := []string{
\n"test@example.com",
\n"user.name@example.co.uk",
\n"invalidemail.com",
\n"test@@example.com",
\n".test@example.com",
\n"test@999.999.999.999",
\n}<\/p>\n
for _, t := range testCases {
\nvalid, err := v.IsValid(t)
\nfmt.Println("\u90ae\u7bb1:", t)
\nfmt.Println("\u662f\u5426\u6709\u6548:", valid)
\nfmt.Println("\u9519\u8bef:", err)
\nfmt.Println("——————-")
\n}
\n}<\/p>\n
\u521d\u59cb\u5316\u90ae\u7bb1\u6821\u9a8c\u5668，\u9ed8\u8ba4\u6700\u5927\u957f\u5ea6254\u3002<\/p>\n
\u4e3b\u6821\u9a8c\u51fd\u6570\u3002<\/p>\n
\u5b8c\u6210：<\/p>\n
\u53bb\u7a7a\u683c<\/p>\n<\/li>\n
\u5224\u7a7a<\/p>\n<\/li>\n
\u957f\u5ea6\u9650\u5236<\/p>\n<\/li>\n
@\u6570\u91cf\u6821\u9a8c<\/p>\n<\/li>\n
\u62c6\u5206local\u548cdomain<\/p>\n<\/li>\n
\u5206\u522b\u6821\u9a8c<\/p>\n<\/li>\n<\/ul>\n
\u6821\u9a8c\u672c\u5730\u90e8\u5206：<\/p>\n
\u957f\u5ea6\u9650\u5236<\/p>\n<\/li>\n
\u4e0d\u5141\u8bb8.\u5f00\u5934\u7ed3\u5c3e<\/p>\n<\/li>\n
\u4e0d\u5141\u8bb8\u8fde\u7eed..<\/p>\n<\/li>\n
\u6b63\u5219\u5339\u914d\u5408\u6cd5\u5b57\u7b26<\/p>\n<\/li>\n<\/ul>\n
\u6821\u9a8c\u57df\u540d\u90e8\u5206：<\/p>\n
\u975e\u7a7a<\/p>\n<\/li>\n
\u652f\u6301IP\u5730\u5740<\/p>\n<\/li>\n
\u6b63\u5219\u5339\u914d\u5408\u6cd5\u57df\u540d<\/p>\n<\/li>\n<\/ul>\n
\u672c\u9879\u76ee\u5b9e\u73b0\u4e86\u4e00\u4e2a：<\/p>\n
\u2714 \u4e25\u683c\u90ae\u7bb1\u6821\u9a8c\u5668
\n\u2714 \u652f\u6301IP\u57df\u540d
\n\u2714 \u652f\u6301\u957f\u5ea6\u63a7\u5236
\n\u2714 \u652f\u6301\u9519\u8bef\u8fd4\u56de
\n\u2714 \u6613\u6269\u5c55<\/p>\n
\u76f8\u6bd4\u76f4\u63a5\u4f7f\u7528 net\/mail.ParseAddress()，\u672c\u5b9e\u73b0：<\/p>\n
\u66f4\u53ef\u63a7<\/p>\n<\/li>\n
\u66f4\u4e25\u683c<\/p>\n<\/li>\n
\u66f4\u9002\u5408\u4e1a\u52a1\u573a\u666f<\/p>\n<\/li>\n<\/ul>\n
\u9002\u7528\u4e8e：<\/p>\n
\u7528\u6237\u6ce8\u518c\u7cfb\u7edf<\/p>\n<\/li>\n
\u4f01\u4e1a\u7ba1\u7406\u7cfb\u7edf<\/p>\n<\/li>\n
\u6570\u636e\u6e05\u6d17\u5de5\u5177<\/p>\n<\/li>\n
\u90ae\u4ef6\u53d1\u9001\u670d\u52a1<\/p>\n<\/li>\n<\/ul>\n
\u8fc7\u4e8e\u5bbd\u677e，\u4e0d\u9002\u5408\u4e25\u683c\u6821\u9a8c\u3002<\/p>\n
\u5f53\u524d\u7248\u672c\u652f\u6301IP\u5224\u65ad，\u4f46\u672a\u4e13\u95e8\u5f3a\u5316IPv6\u683c\u5f0f\u3002<\/p>\n
\u5f53\u524d\u7248\u672c\u4e0d\u652f\u6301IDN\u56fd\u9645\u57df\u540d\u3002<\/p>\n
\u53ef\u6269\u5c55：<\/p>\n
AllowedDomains []string<\/p>\n
\u4f7f\u7528：<\/p>\n
golang.org\/x\/net\/idna<\/p>\n
\u6dfb\u52a0\u9ed1\u540d\u5355\u5217\u8868\u3002<\/p>\n
\u4f7f\u7528：<\/p>\n
net.LookupMX()<\/p>\n
\u9a8c\u8bc1\u57df\u540d\u662f\u5426\u771f\u5b9e\u5b58\u5728\u90ae\u4ef6\u670d\u52a1\u5668\u3002<\/p>\n
\u4f7f\u7528：<\/p>\n
go test<\/p>\n
\u672c\u6559\u7a0b\u5b8c\u6574\u5b9e\u73b0\u4e86：<\/p>\n
Go\u8bed\u8a00\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u6709\u6548\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7b97\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u9879\u76ee\u80cc\u666f\u8be6\u7ec6\u4ecb\u7ecd\u5728\u73b0\u4ee3\u4e92\u8054\u7f51\u7cfb\u7edf\u4e2d，\u7535\u5b50\u90ae\u4ef6（Email）\u51e0\u4e4e\u662f\u6240\u6709\u7cfb\u7edf\u6700\u57fa\u7840\u7684\u8eab\u4efd\u6807\u8bc6\u4e4b\u4e00\u3002\u65e0\u8bba\u662f\u6ce8\u518c\u767b\u5f55\u3001\u627e\u56de\u5bc6\u7801\u3001\u901a\u77e5\u63d0\u9192\u3001\u8425\u9500\u7cfb\u7edf\u3001\u4f01\u4e1aOA\u7cfb\u7edf，\u751a\u81f3\u5fae\u670d\u52a1\u4e4b\u95f4\u7684\u6d88\u606f\u901a\u77e5，\u90ae\u7bb1\u5730\u5740\u90fd\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002\u5178\u578b\u5e94\u7528\u573a\u666f\u5305\u62ec：\u7528\u6237\u6ce8\u518c\u6821\u9a8c\u627e\u56de\u5bc6\u7801\u53d1\u9001\u9a8c\u8bc1\u7801\u4f01\u4e1a\u7528\u6237\u8ba4\u8bc1CRM\u7cfb\u7edf\u6570\u636e\u5f55\u5165\u6279\u91cf\u8425\u9500\u7cfb\u7edf\u6570\u636e\u6e05\u6d17\u5982\u679c\u90ae\u7bb1\u5730\u5740\u6821\u9a8c\u4e0d\u4e25\u683c，\u53ef\u80fd\u4f1a\u5e26\u6765：\u6570\u636e\u6c61\u67d3（<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[746,292,190],"topic":[],"class_list":["post-79414","post","type-post","status-publish","format-standard","hentry","category-server","tag-golang","tag-292","tag-190"],"yoast_head":"\n