Re: Port 25 Error in Mac Mail after SSL Security Measures

Hi Beth,

As always, Aron is correct.

Just in case, here is the URL for the Opt-out on SBC:

http://help.sbcglobal.net/servabuse.php

-Bernie Tower
  CalMail Consulting

At 9:42 AM -0800 2/28/05, Aron Roberts wrote:
>Hi Beth,
>
>>A user got this when he changed his security settings in Mac Mail.
>>...
>>"I have been getting an error msg when sending email via my home dsl
>>services. it has only come up since I've implemented the ssl
>>requirements. the error says:
>>
>>The SMTP server "smtp.sbcglobal.yahoo.com" doesn't support TLS (SSL)
>>on port 25. Please check your account settings and try again.
>>...
>>I talked to sbc yahoo and they said I need to "opt out of port 25
>>filtering" in order to use ssl for the outgoing smtp server. does this
>>sound right?
>
> The CalMail folks are advising users who connect to the Internet
>through ISPs which require the use of their own mail servers to either:
>
>- Leave their existing 'sending mail' settings in place;
> that is, to continue to leave one's email program(s)
> configured to use the ISP's own mail server for sending mail,
> while configuring secure (SSL/TLS) connections to CalMail for
> receiving mail from that server via POP or IMAP; or
>
>- Configure their email programs to securely send mail to
> CalMail via the 'alternate' SSL-only SMTP port, port 465,
> *if* the ISP doesn't filter that port; or
>
>- Configure their email programs to securely send mail to
> CalMail via the 'submission' port, port 587. (Caveat:
> while this is the preferred method, Internet standards-wise,
> this can be tricky to configure in Eudora.); or
>
>- Opt out of the ISP's filtering of the SMTP port, port 25 - which
> usually requires a specific request to the ISP, and may take
> some time - then configure their email programs to connect securely
> to CalMail's SMTP port, port 25, using the "Required TLS" or "STARTTLS"
> or similarly named configuration option in their email program.
>
> For simplicity, the first option (i.e. leaving one's email
>program configured to send outgoing mail via the ISP's SMTP server)
>is what some of the CalMail client configuration docs now reflect.
>(See the Eudora documents in the CalMail Knowledge Base,
><http://kb.berkeley.edu>, for examples.)
>
> Some of the other docs (e.g. Mail for Mac OS X) are in the
>process of being similarly revised, but these changes may take
>another day or two to be reflected in all of the client docs.
>
>>if so, I'm I exposing myself to other non-filtered stuff coming thru b/c
>>I've asked sbc yahoo NOT to filer on port 25?
>
> Not to my knowledge. That type of filtering is not for protection
>against viruses or Internet attacks; rather, it is simply preventing
>users of that ISP from sending outgoing mail via port 25 through any
>mail servers except those belonging to the ISP.
>
>Aron Roberts
>Workstation Software Support Group
>
>------------------------------------------------------------------------
>The following was automatically added to this message by the list server:
>
>For information about Micronet, including subscribing to
>or unsubscribing from its mailing list and finding out
>about upcoming meetings, please visit the Micronet Web site:
><http://micronet.berkeley.edu/>.

------------------------------------------------------------------------
The following was automatically added to this message by the list server:

For information about Micronet, including subscribing to
or unsubscribing from its mailing list and finding out
about upcoming meetings, please visit the Micronet Web site:
<http://micronet.berkeley.edu/>.
Received on Mon Feb 28 11:02:40 2005