Re: E-Mail attachements

That depends on the mail server.  If the mail server supports the 
option, you can telnet to port 25 of the mail server, and issue an EHLO 
command:

> # telnet gmail-smtp-in.l.google.com. 25

< Trying

< 64.233.169.26...

< Connected to gmail-smtp-in.l.google.com.

< Escape character is '^]'.

< 220 mx.google.com ESMTP 203si1683240oic.114 - gsmtp

> EHLO bob

< 250-mx.google.com at your service, [38.101.148.27]

< 250-SIZE 35882577

< 250-8BITMIME

< 250-STARTTLS

< 250-ENHANCEDSTATUSCODES

< 250-PIPELINING

< 250-CHUNKING

< 250 SMTPUTF8


 From the response to the EHLO command, you can see that the enforced 
size limit is 35882577 bytes (roughly 34.22mb).

Not all mail servers support this, though. If yours does not, your only 
option is likely trial and error, and/or hope that if you send a message 
that exceeds their size limit, the error message they return tells you 
the enforced size limit.

-- Jonathan



On 07/27/2015 12:46 PM, Dale Beams wrote:
> Hi.
>
> Now I need help.  My ISP tells me there is no limit on e-mail 
> attachments that I send via SNMP through a third party e-mail 
> service.  However I and others are having problems getting files above 
> a certain megabyte limit beyond our e-mail clients.  What would be the 
> best way to test SNMP protocol limits.?
>
> Dale
>

-- 

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