Problems sending emails to gmail

[Marcosebas]

Dear all,

Thank you for you time reading this thread.

Since the last week my emails are being refused by gmail.

I am getting the following error:

<xxxxxxxx@gmail.com>: host gmail-smtp-in.l.google.com[74.125.21.26] said:
550-5.7.1 [201.219.50.133 12] Our system has detected that this
message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam
sent to Gmail, 550-5.7.1 this message has been blocked. Please visit
550-5.7.1 https://support.google.com/mail/?p=Unso ... ssageError 550
5.7.1 for more information. k10si9011040ywa.4 - gsmtp (in reply to end of
DATA command)

However, I have all the bulk sender guidelines (DKIM, SPF, DMARCs) installed on my system and had no problems before last Thursday when this problem started. This problem is only with gmail.

My mail system has a 10/10 grade in different mail testers. An example can be seen in the following images.





I had filled the following formulary in order to get a solution from gmail, but no solutions has been given till now.

Formulary: https://support.google.com/mail/contact ... 06284&rd=1

I would be very grateful for any support or advice regarding to this issue.

Best,

Marco

[fayaz]

hi

is your problem solved. ??? same issue i am facing right now . can you please let me know how you solved it.

[binhbdq]

you can try install smtp on zimbra , i recommend service etc postmark , sendgrid , email go to inbox 99% , you can search install smtp zimbra in google

[fayaz]

hi

thanks for your reply . can you please elabroate the thing which you are talking about. can you please explain what do you mean by "install smtp zimbra " . please response it i am looking your repsonse.