Dear Friends i am reciving mails to my inbox from all servers and send with in my local accounts. when i trying to send mail outside my server the error comes like ....
220 mail.mydhilimedicals.com ESMTP MailEnable Service, Version: 10.43-- ready at 01/23/23 07:02:31 [325 ms]
EHLO keeper-us-east-1d.mxtoolbox.com
250-mydhilimedicals.com [18.209.86.113], this server offers 4 extensions
250-AUTH LOGIN
250-SIZE 40960000
250-HELP
250 AUTH=LOGIN [335 ms]
MAIL FROM:<supertool@mxtoolboxsmtpdiag.com>
250 Requested mail action okay, completed [330 ms]
RCPT TO:<test@mxtoolboxsmtpdiag.com>
503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server. [362 ms]
QUIT
221 Service closing transmission channel [332 ms]
Can any one solve this issue
Thanks in advance...
503 This mail server requires authentication
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Admin
- Site Admin
- Posts: 1093
- Joined: Mon Jun 10, 2002 6:31 pm
- Location: Melbourne, Victoria, Australia
Re: 503 This mail server requires authentication
Hi,
When you are trying to relay email, where the recipient is not configured on your server, you need to authenticate (this is the default configuration). So the email client needs to send a username/password to send email to a remote server. In your example the sender has not authenticated and if blocked from sending email to anyone except addresses configured on the server. Normally in your email client it will have the configuration option for your SMTP settings to enter username/password.
When you are trying to relay email, where the recipient is not configured on your server, you need to authenticate (this is the default configuration). So the email client needs to send a username/password to send email to a remote server. In your example the sender has not authenticated and if blocked from sending email to anyone except addresses configured on the server. Normally in your email client it will have the configuration option for your SMTP settings to enter username/password.
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dholbrook2
- Posts: 6
- Joined: Sun Jan 29, 2023 3:27 am
Re: 503 This mail server requires authentication
I am wondering about authentication when using mailenable standard only as a list connector, not for pop/SMTP e-mail.
What authentication settings for relay and SMTP should I use so that the authentication checks against the list members to let them post and receive, but blocks anyone not meeting a name@domain (e.g. fred@gmail.com) in the list - or do I misunderstand something here. I am getting the 503 error on e-mails to the list.
Thank you
What authentication settings for relay and SMTP should I use so that the authentication checks against the list members to let them post and receive, but blocks anyone not meeting a name@domain (e.g. fred@gmail.com) in the list - or do I misunderstand something here. I am getting the 503 error on e-mails to the list.
Thank you
-
Admin
- Site Admin
- Posts: 1093
- Joined: Mon Jun 10, 2002 6:31 pm
- Location: Melbourne, Victoria, Australia
Re: 503 This mail server requires authentication
Hi,
If your list contains external addresses then there is no local username/password they can authenticate with. If you have set the list option to be "Only list members can post to this list" it uses the senders email address to check. If all the members are local mailboxes you could set the SMTP service to require authentication for sending, but generally a list works by just accepting emails to it and duplicating for all members, similar as if it was a mailbox.
If your list contains external addresses then there is no local username/password they can authenticate with. If you have set the list option to be "Only list members can post to this list" it uses the senders email address to check. If all the members are local mailboxes you could set the SMTP service to require authentication for sending, but generally a list works by just accepting emails to it and duplicating for all members, similar as if it was a mailbox.
