What are the attachment size limits for our E-mail?

All E-mail systems place a limit on the total size of the items attached to a single message.  These limits will vary depending on the E-mail system and how it has been configured by its administrators/providers.  Here we explain more about attachment limits and what to do if you are encountering such problems.

23 September 2012 Frequently Asked Questions  E-mail

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Scanned material

Documents for cases, particularly urgent matters, are frequently sent via E-mail and often these are scanned copies of statements, evidence etc.  Scanned copies of paper documents can be considerable in size depending on the pages being scanned and the scanner settings and this can exceed the limits of the E-mail systems involved.

Size limits

All E-mail systems place a limit on the total size of the items attached to a single message.  These limits will vary depending on the E-mail system and how it has been configured by its administrators.

The size limits will apply both on the sending system and the receiving system and these can be different.  So if your E-mail system allows you to send an E-mail with an attachment of a particular size it doesn't follow that the recipient will be able to receive it.

In general the attachment size limit for 15 New Bridge Street will be 150MB.

If you need to send large attachments

If you need to scan and send material to someone else you should aim to keep the total size of the attachments well below the maximum of 150MB per message.  Though many E-mail systems will permit you to send/receive larger attachments there is an overhead to each message which may push it over the limit.  By sticking to less than 150MB you shouldn't encounter any problems.

If you find a single attachment is more than 150MB then consider:

  1. Rescanning the material in smaller batches or...
  2. Using tools to separate the material into several smaller attachments.

If someone is having difficulty sending you large attachments

If someone is getting a message back saying the size limits have been exceeded they should first check their own E-mail system as it may be rejecting the message.  If so, advise them to break the material up into smaller chunks.

If their E-mail system permits the size being sent then it is your E-mail system limit that is limiter.  If you are receiving their E-mail using a personal E-mail account then you will need to ask them to break it the material up into smaller chunks or consider moving to using the 15 New Bridge Street E-mail system which will usually allow much larger attachments.

If it is to your 15 New Bridge Street E-mail address that is the problem, then please contact us and we will look into it however it is unlikely we would increase the size limits as these will already be set higher than most and unless it is a very urgent matter we will ask you to speak to the sender and request that they break the material down into smaller chunks.

Personal E-mail Accounts

If you are using a personal E-mail account rather than 15 New Bridge Street E-mail account that you should be aware of the size limits - these are often going to be lower as they are not tailored to the needs of the legal industry.  The following lists the attachment size limits for several commonly used E-mail services.

  • Gmail - 25MB
  • Yahoo! - 25MB
  • Hotmail - 25MB
  • AOL - 25MB
  • BT Connect - 25MB

Alternatives to E-mail

E-mail is a convenient choice for sending files but if you have a large amount of material to send it may not be the best choice.  You also have duties under Data Protection and Security rules to ensure the material is kept safe and secure.  Services such as Dropbox and YouSendIt let you shared large files with others but when using such services do keep in mind your security obligations.

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Corrections or suggestions

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