Looks like you're using Outlook Express, and SIFY's sendmail setup is bdly broken, if it does not relay for one of its own IPs.
Write to their helpdesk.
Rgds,
Krishnan
--- Harshal Patil harshal1234@sify.com wrote:
i can't post regularly. ie. sometimes it's OK sometimes ot gives me following error.
The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'linuxers@mm.ilug-bom.org.in'. Subject 'debain cds', Account: 'imap.sify.com', Server: 'smtp.sify.com', Protocol: SMTP, Server Response: '553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1)', Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC79
The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'linuxers@mm.ilug-bom.org.in'. Subject 'debain cds', Account: 'imap.sify.com', Server: 'smtp.sify.com', Protocol: SMTP, Server Response: '553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1)', Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC79
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