fp = open(reportFileName, 'rb') msg = MIMEBase('application', 'octet-stream') msg.set_payload(fp.read()) fp.close() # Encode the payload using Base64 Encoders.encode_base64(msg) # Set the filename parameter msg.add_header('Content-Disposition', 'attachment', filename=header.decode('cp1251').encode('koi8-r') + '.xls') outer.attach(msg). I could use "MIMEImage" for.png and then attach it to an "MIMEMultipart" object. But I couldn't or don't know how to attachment a.pdf or something else to my emails. Can't attach attachments in email using ASP CDO. wrote: Hi, I am writing a simple program that sends emails with attachments. Here is a great helper class that I have used for several years. I didn't write it, but it has worked fine. Even if you want to write your own, it should help as a guide. I could use "MIMEImage" for.png and then attach it to an "MIMEMultipart" object. But I couldn't or don't know how to attachment a.pdf or something else to my emails. Need help? Post your question and get tips & solutions from a community of 424,829 IT Pros & Developers. Follow us to get the Latest Bytes Updates. here is my code for Excel outer = MIMEMultipart() outer['Subject'] = header.decode('cp1251').encode('koi8-r') outer['To'] = baseParam['mailto'] outer['From'] = baseParam['mailfrom'] outer.preamble = '' # To guarantee the message ends with a newline outer.epilogue = ''. Attach An outlook message to an outlook message. server = smtplib.SMTP(baseParam['server'], baseParam['port'], 'localhost') #server.set_debuglevel(1) server.sendmail(baseParam['mailfrom'], baseParam['mailto'], outer.as_string()) server.quit(). Best way to construct an email - attach a html file and send. how to browse and attach file in email?. I'm new to python, could somebody help me about that?. I'm new to python, could somebody help me about that? Thank You, kychan. Thanks I think I should use MIMEBase for any file. Hi, I am writing a simple program that sends emails with attachments. Hi Dawid, This is not achievable within Office 365 at this point. Follow CodeTwo on social media– if we will have a solution for the issue, we will announce it there. How to find and change Exchange attachment size limit. 13 thoughts on " How to find and change Exchange attachment size limit ". Transport service accepts messages no larger than 25 MB All send/receive connectors have message size limit set to 10 MB There is no size limit set on the Administrator mailbox. Meet the CodeTwo team and read about the company's history. How to block external access to Exchange admin center in Exchange 2019 via Client Access Rules?. Email often carries more than just a text message. It is also used as a medium for other types of data. If you want to send a document, an image or a spreadsheet simply attach it to your mail. To protect mailbox databases from uncontrolled growth due to massive use of mail attachments, Microsoft Exchange 2019/2016/2013/2010/2007 incorporates a special set of message size limits in its configuration. Windows Server, Exchange, Office 365 and more– a spam-free diet of tested tips and solutions. You may use these HTML tags and attributes:. " pipe symbol to the Set-Mailbox command. This method works also for the send/receive connectors. The final script that sets the transport message size limit to 15 MB, send/receive connectors limits to 10 MB each, and the message size limit in all mailboxes to 10 MB presents as follows: get-transportconfig. Set-Mailbox -MaxSendSize 10MB -MaxReceiveSize 10MB The Get-mailbox command result is passed with the ". Find out what we do to ensure the highest level of customer satisfaction and product quality. Detailed information concerning our technical support model and other services we offer. Ask questions, submit queries and get help with problems via phone or email. Get- command directly to the Set- command. To do so– use the piping feature of PowerShell. E.g. setting a 10MB message size limit in all mailboxes requires the following command: Get-Mailbox. How to sync local Active Directory to Office 365 with DirSync. Set-Mailbox -Maxsendsize 10MB -maxreceivesize 10MB There is a drawback however. Limits presented above are set for the message as a whole, no matter if they contain attachments or not. If the message is extremely large and contains no attachment, it will be stopped. Attachment size limit The only way to set size limits exclusively for attachments is to use a hub transport rule, which will detect and block messages if their attachments are over a specified size threshold. To set up the rule you can use the below PowerShell script, as the method is quite simple: New-TransportRule -Name LargeAttach -AttachmentSizeOver 10MB -RejectMessageReasonText "Message attachment size over 10MB - email rejected." The command creates a rule named LargeAttach that is triggered by any email with attachments larger than 10MB. The rule then stops the message from delivery, and sends back a notification about that fact to the original sender. Setting up message and attachment size limits to stop bloating your mailbox database seems quite reasonable. However, this still does not resolve the problem fully, as over time the database will grow anyway due to increased email traffic. Even small attachments can affect your server when they are sent in large quantities. Sure, you can even lower limits, but this is a dead end situation. In today's world a 5MB PDF attachment is nothing uncommon, and it is safe to assume that these numbers will only grow. Fortunately, there is a solution that keeps your database safe and allows even large attachments to reach your organization– CodeTwo Exchange Rules Pro. It features the attachment strip/compress function. It gives you ability to remove attachments on the fly from messages traveling through your server and place them in a different, separate repository. It also leaves a link to that repository in the message itself so the recipient can still access the file with no problem– check out all available email attachment stripping and compressing capabilities of CodeTwo Exchange Rules Pro. How to find and change Exchange attachment size limit. Bear in mind that the last line of the script ( Get-Mailbox ) returns information only about the Administrator's user mailbox. Replace it with the user name you want to check. Alternatively, you can remove the Administrator phrase entirely, however this will result in a list of all mailboxes present on the Exchange. To change the above size limits you can use a PS script too. The example below shows how to reduce the size of messages accepted by the transport service from the 25 MB to 15 MB. Set-TransportConfig -MaxSendSize 15MB -MaxReceiveSize 15MB Syntax of the command for send/receive connectors is similar, however you need to execute it for each connector's identity. The same rule applies to mailboxes– you need to specify which mailboxes to affect by the command. Therefore, it is easier to pass over the result of the. How to enable and view SharePoint Online logs?. Latest news straight from the horse's mouth: events, software releases, updates, Outlook help and more. I am running exchange 2016. The get commands above do not work and are not listed when I enter Get-ExCommand. Do I have to load these commands?