验证邮件会被Gmail拒收
退信原因 收件方地址不存在，或暂时不可用，导致邮件被系统退回。
解决方案 1. 请检查输入的收件方地址是否有误；2. 请联系收件方确认其域名MX是否存在,指向是否正确；3. 请联系收件方确认其邮箱使用状态，是否存在过期、被禁用或冻结等情况。
远程响应 the mta server of gmail.com -- gmail-smtp-in.l.google.com(173.194.174.26) reply:550 5.7.26 This mail has been blocked because the sender is unauthenticated. Gmail requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = did not pass SPF [nodeloc.com] with ip: [47.90.198.159] = did not pass To mitigate this issue, please visit Gmail's authentication guide for instructions on setting up authentication: https://support.google.com/mail/answer/81126#authentication l72-20020a63914b000000b005aaefc07ccfsi3415349pge.36 - gsmtp at 2023-10-29 17:39:25
spf记录已经添加了还是不行，正在想办法处理中。
