host gmail-smtp-in.l.google.com [173.194.76.26]
SMTP error from remote mail server after end of data:
550-5.7.26 This mail is unauthenticated, which poses a security risk to the
550-5.7.26 sender and Gmail users, and has been blocked. The sender must
550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
550-5.7.26 DKIM checks did not pass and SPF check for [] did
550-5.7.26 not pass with ip: []. The sender should visit
550-5.7.26 https://support.google.com/mail/answ...authentication for
550 5.7.26 instructions on setting up authentication. v20-20020a05600c215400b003fbd8e70857wml.157 - gsmtp

şeklinde bir hata alıyorum muhtemelen dnsler dönmedi henüz diyedüşünüyorum , eğer bir yanlış yapıyorsam önlem amaçlı çalışma yapayım istedim