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comp_audio, 20+ Year Computer Expert
Category: Email
Satisfied Customers: 325
Experience:  20+ years experience supporting e-mail issues of all kinds.
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Can receive email on Entourage but get Error 17099 when

Customer Question

Can receive email on Entourage but get Error 17099 when trying to send.
Also message smtp
Any suggetions?
Submitted: 1 year ago.
Category: Email
Expert:  comp_audio replied 1 year ago.

Hello, my name is ***** ***** I will try to assist you tonight.

There may be different reasons of the entourage error 17099. The most common cause of this is having a bad email address your sending to. Please try and send yourself a test email and let me know if that works or not.

Expert:  comp_audio replied 1 year ago.

Just a couple other things to think about and look at...

Since this is a sending issue, see if there is a message stuck in your outbox that won't get sent? Is there a problem with your ISP which prevents you from sending e-mail messages? Can you verify if you can send messages using a different e-mail client, such as Thunderbird or Apple Mail?

Expert:  comp_audio replied 1 year ago.

One more thing, I wanted to send you I found, and hope that this might help. But either way please reply and let me know what else I can assist you with. This is from a Microsoft Office for MAC forum.

Error -17099

Relaying to <the email address> prohibited by administrator Email could not be sent Account name (my account name) Error -17099

Error -17099 is an Entourage SMTP Server Reply Error, and is returned when the SMTP server has returned a permanent or transient error or returns an unexpected result code.

This error is coming from your ISP.

Users have reported this error when sending to large groups. ISPs are who limit the allowed number in a group. Usual number is ***** recipients to avoid spammer misuse. Entourage has no limit. You should contact your mail provider to ascertain the maximum number of recipients per message and note it. You can use the free "Split Recipients" script to send a mass e-mail in separate mailings automatically:

Split Recipients for Entourage 2001

Split Recipients for Entourage X

Most ISPs also require you to use their SMTP address when sending.

I hope this additional information helps.

Expert:  comp_audio replied 1 year ago.

Please let me know how things are going in regards ***** ***** information. Thanks