550 validating sender outlook


01-Sep-2017 00:09

See: Our FAQ in portuguese, you can run it in google translator: https://suporte.icewarp.c...pam-ocorridos-via-smtp Some tips: 1) Disable POP before SMTP. So for example, an employee is travelling, its very common for hotels, etc.to block port 25 or force them to use the Hotel's SMTP.The error when limit reaches is "we do not relay, account limits apply".ALSO I do recommend you add a filter that adds X-auth: %%auth_email%% in header.I've also made sure that the ports are successfully aligned so as to not mess with the firewall.The user can receive emails; she just can't send any. A “550 Access Denied – Invalid HELO name” SMTP error usually occurs when the SMTP Domain configured as part of an email sender’s identity does not match the senders email address.Thanks Hi, To set a daily limit in accounts, you can go to your domain (or all of them using shift or or templates), LIMITS tab and set in the Users section Max msgs out per day to 500 lets say. BTW if this option is greyed out, enable use user limits in global settings.

Pretty straightforward process, except for when it's not.So if you wanna be safe, do something like the image in this faq: https://suporte.icewarp.c...-ler-logs-do-anti-spam So: - Your connections per min is too low. because this blocks an IP in case of x failed attempts, so imagine, you can block an entire company if they use same OUT IP because of 1 user putting wrong pwd... Thats 1 of the main feature, it blocks dictionary attachs, if over x invalid receipients, block for x minutes and enable cross session and close connections. The idea with this feature is to avoid people sending HUGE files to yoru customers. ITs because SMTP (not ESMTP) has to receive entire message before knowing size.



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