503 error sending (it's not email client, it is whm server side).
Your message did not reach some or all of the intended recipients.
Subject: testing
Sent: 2/03/2022 12:39 PM
The following recipient(s) cannot be reached:
'randomuser@outlook.com' on 2/03/2022 12:39 PM
503 Valid RCPT command must precede DATA
this is not an outlook issue. it is whm server issue with Open SSL.
"openssl_options = +no_sslv2 +no_sslv3 +no_tlsv1 +no_tlsv1_1".
I dont understand this error as it was all working one day then suddenly it stops.
RECEIVING WORKS BUT SSL SENDING OUTBOUD SECURELY DOES NOT.
4.18.0-305.25.1.el8_4.x86_64 #1 SMP Tue Nov 2 10:34:25 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux
Anyone?
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Thank you for your reply but it has nothing to do with email client. Outlook it is not the reason causing this error. It is cPanel / WHM configuration for some reason. My hosting provider for my dedicated server and rebuilt it but still mail is not working!!!!!!!!!!!!!!!!!! 0 -
Can you also let me know where you are seeing the OpenSSL settings you posted?
this is in exim configuratuon manager > under security tweak settings options for openSSL :)0 -
Thank you for your reply but it has nothing to do with email client. Outlook it is not the reason causing this error. It is cPanel / WHM configuration for some reason. My hosting provider for my dedicated server and rebuilt it but still mail is not working!!!!!!!!!!!!!!!!!!
I have those same setting in exim configuratuon manager > under security tweak settings options for openSSL Options for OpenSSL [?] This option is used for configuring SSL and TLS protocols in OpenSSL. +no_sslv2 +no_sslv3 +no_tlsv1 +no_tlsv1_1 no issues on my end sending emails0 -
@David Gawler - what do you see in either /var/log/exim_mainlog or /var/log/maillog during the time when you try and send a message? One of those areas should give you more details if it is indeed a server-side issue. 0
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